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Keiichi Koyama, Yoshifuru Mitsui, Saki Imatsuji, Akari Onaka, Ryota Kobayashi, Masahira Onoue, Reisho Onodera
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Study of heat treatment effect on magnetic properties of MnFeGe using <sup>57</sup>Fe Mössbauer spectroscopy
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Kobayashi R., Mitsui Y., Yoshizaki Y., Takahashi K., Takamine K., Koyama K.
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Controlling the growth of yeast by culturing in high magnetic fields
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Journal of Magnetism and Magnetic Materials586
2023.11Reviewed
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Takaoka Taisei, Mitsui Yoshifuru, Koyama Keiichi, Fujii Shinpei
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Site Selectivity and Structural Stabilization in Cu-Doped or Fe-Doped MnCoGe
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MATERIALS TRANSACTIONS64
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Nakamoto Kota, Mitsui Yoshifuru, Kobayashi Ryota, Koyama Keiichi
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In-Magnetic-Field Heat Treatment Effects on Phase Growth of Mn–Bi–Sn Composite
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MATERIALS TRANSACTIONS64
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Masahira ONOUE, Yoshifuru MITSUI, Saki IMATSUJI, Ryota KOBAYASHI, Reisho ONODERA, Keiichi KOYAMA
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Magnetic Properties of MnFeGe Probed Using 57Fe Mössbauer-spectroscopy
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38
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2023.5Magnetic Properties of MnFeGe Probed Using 57Fe Mössbauer-spectroscopyReviewed
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Yoshifuru MITSUI, Hideto TANAKA, Masahira ONOUE, Moriharu NAGANO, Ryota KOBAYASHI, Rie Y. UMETSU, Keiichi KOYAMA
.
Magnetic and Hyperfine Properties of FeZnSb
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JPS Conference Proceedings38
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2023.5Magnetic and Hyperfine Properties of FeZnSbReviewed
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Akari Onaka, Masahira Onoue, Reisho Onodera, Yoshifuru Mitsui, Keiichi Koyama
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Magnetic and structural properties of Fe-substituted MnCoGe with Ni2In-type structure
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Journal of Magnetism and Magnetic Materials563
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2022.12Reviewed
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Junki Takahashi, Yoshifuru Mitsui, Masahira Onoue, Ryota Kobayashi, Keiichi Koyama
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Nitridation kinetics of Sm<inf>2</inf>Fe<inf>17</inf> probed using Mössbauer spectroscopy
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Journal of Magnetism and Magnetic Materials554
2022.7Reviewed
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Fujii S., Mitsui Y., Koyama K.
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Ab initio Study of Atomic-disorder Effect on Electronic and Magnetic Properties of CrAGe
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Journal of the Physical Society of Japan91
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2022.6Reviewed
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Ryota Kobayashi, Yoshifuru Mitsui, Rie Y. Umetsu, Kohki Takahashi, Keiichi Koyama
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Acceleration of B2/L2<inf>1</inf> order-disorder transformation in Ni<inf>2</inf>MnAl Heusler alloys by in-magnetic-field annealing
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Journal of Magnetism and Magnetic Materials547
2022.4Reviewed
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Mitsui Yoshifuru, Onoue Masahira, Kobayashi Ryota, Sato Kaori, Kuzuhara Shunsuke, Ito Wataru, Takahashi Kohki, Koyama Keiichi
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High Magnetic Field Effects on Cu-precipitation Behavior of Fe-1mass%Cu at 773 K
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ISIJ International62
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Hiroi M.
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High magnetic field properties in Ru2-xFexCrSi with antiferromagnetic and spin-glass states
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Physical Review B103
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Kobayashi Ryota, Mitsui Yoshifuru, Umetsu Rie Y., Mizuguchi Masaki, Koyama Keiichi
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Synthesis of Ferromagnetic τ-Mn–Al–C by Reactive Sintering
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MATERIALS TRANSACTIONS62
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2021Reviewed
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Kobayashi Ryota, Takaki Akio, Mitsui Yoshifuru, Umetsu Rie Y., Takahashi Kohki, Mizuguchi Masaki, Koyama Keiichi
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Dual Acceleration of ε-τ Transformation in Mn–Al Induced by Zn-Addition and In-Magnetic-Field Annealing
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MATERIALS TRANSACTIONS62
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Yumi Watanabe, Ryota Kobayashi, Yoshifuru Mitsui, Rie Y. Umetsu, Keiichi Koyama
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Magnetic-field-induced selective retardation of reaction in Mn/Ga diffusion couple
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Journal of Alloys and Compounds887
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161310
2021Reviewed
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Shun Nakagawa, Yoshifuru Mitsui, Ryota Kobayashi, Rie Y. Umetsu, Kohki Takahashi, Keiichi Koyama
.
Magnetic-field-induced decomposition in Cu2MnAl Heusler alloys
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Journal of Magnetism and Magnetic Materials540
168411
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168411
2021Reviewed
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Y. Mitsui, Y. Takanaga, R. Kobayashi, K. Koyama
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Effect of carbon addition on the phase stability of hcp-Mn-Al
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Physics B595
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M Onoue, R Kobayashi, Y Mitsui, RY Umetsu, Y Uwatoko, K Koyama
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Magnetic field-induced nitridation of Sm2Fe17
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J. Alloys Comp.835
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Noguchi Kohei, Mitsui Yoshifuru, Hiroi Masahiko, Umetsu Rie Y., Gouchi Jun, Uwatoko Yoshiya, Koyama Keiichi
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Effects of Substituted Elements on Spin Reorientation in Mn<sub>2−</sub><i><sub>x</sub></i>Fe<i><sub>x</sub></i>Sb<sub>1−</sub><i><sub>y</sub></i>Sn<i><sub>y</sub></i>
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MATERIALS TRANSACTIONS61
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Koyama Keiichi, Onoue Masahira, Kobayashi Ryota, Mitsui Yoshifuru, Umetsu Rie Y., Uwatoko Yoshiya
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Magnetic Field Effect on Nitrogenation of Sm<sub>2</sub>Fe<sub>17</sub>
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MATERIALS TRANSACTIONS61
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三井好古,尾上昌平,小山佳一
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磁場中反応を利用した選択的磁性材料合成
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K Nagano, Y Okubo, Y Mitsui, K Koyama, S Fujii
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Ab-Initio Study on Structural and Magnetic Properties of Fe-Doped MnCoGe
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Mater. Trans.61
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K Noguchi, Y Mitsui, M Hiroi, RY Umetsu, J Gouchi, Y Uwatoko, K Koyama
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Effects of Substituted Elements on Spin Reorientation in Mn2-xFexSb1-ySny
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Deguchi Takuya, Matsubayashi Kazuyuki, Uwatoko Yoshiya, Koyama Takehide, Kohara Takao, Nakamura Hiroyuki, Mitsui Yoshifuru, Koyama Keiichi
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Magnetic Measurements of Narrow-Gap Semiconductor FeSb<sub>2</sub> under High Pressure
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MATERIALS TRANSACTIONS61
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1476
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1479
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Tanaka Anna, Yoshinaga Soshi, Mitsui Yoshifuru, Sasaki Hiroe, Kanomata Takeshi, Koyama Keiichi
.
Magnetic Properties of Weak Itinerant Electron Ferromagnet Au<sub>4</sub>V
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MATERIALS TRANSACTIONS61
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Y. Mitsui, T. Hagio, K. Takahashi, K. Koyama,
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High magnetic field effects on the solid-liquid reaction of Fe-Ga system
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ISIJ International60
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Kohei Noguchi, Ryota Kobayashi, Yoshifuru Mitsui, Rie Y. Umetsu, Jun Gouchi, Yoshiya Uwatoko, Keiichi Koyama
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Heat treatment effect on the magnetic properties and martensitic transformations of MnCoGe
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Journal of Magnetism and Magnetic Materials499
2020.4Reviewed
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M. Hamasaki, M. Yamaguchi, L. Chen, M. Obara, Y. Mitsui, K. Koyama
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Development of an educational tool: experiments on light diffraction and interference for high school physics students
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Rep. Pac. Sci. Kagoshima Univ.52
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Watanabe Yumi, Hagio Toshiaki, Kobayashi Ryota, Mitsui Yoshifuru, Koyama Keiichi
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Phase Formation of a Solid-Liquid Mn–Ga Diffusion Couple under a Magnetic Field
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MATERIALS TRANSACTIONS60
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Onoue Masahira, Kobayashi Ryota, Mitsui Yoshifuru, Umetsu Rie Y., Uwatoko Yoshiya, Koyama Keiichi
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In-Field Heat Treatment Effect on Nitridation of Sm<sub>2</sub>Fe<sub>17</sub>
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R. Kobayashi, Y. Mitsui, R.Y. Umetsu, K. Takahashi, M. Mizuguchi, K. Koyama,
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Magnetic-Field-Induced Enhancement of Phase Transformation in Ferromagnetic τ-Mn-Al
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S. Eto, Y. Fukuda, Y. Mitsui, M. Ito, K. Koyama and S. Fujii
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Stable Structure, Magnetic and Electronic Properties of (Mn,Cr)AlGe
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J. Phys. Soc. Jpn.88
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Y. Watanabe, T. Hagio, R. Kobayashi, Y. Mitsui, K. Koyama
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Phase Formation of a Solid-Liquid MnGa Diffusion Couple under a Magnetic Field
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Mater. Trans. 60
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2019Phase Formation of a Solid-Liquid MnGa Diffusion Couple under a Magnetic FieldReviewed
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M. Onoue, R. Kobayashi, Y. Mitsui, R. Y. Umetsu, Y. Uwatoko, K. Koyama
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In-Field Heat Treatment Effect on Nitridation of Sm2Fe17
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Mater. Trans. 60
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2019In-Field Heat Treatment Effect on Nitridation of Sm2Fe17Reviewed
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R. Kobayashi, Y. Mitsui, K. Takahashi, S. Uda, K. Koyama
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In-field annealing and quenching for ferromagnetic MnBi under 19 T
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IEEE Trans. on Magn.55
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2019In-field annealing and quenching for ferromagnetic MnBi under 19 TReviewed
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Y. Mitsui, R. Kobayashi, Y. Takanaga, A. Takaki, R.Y Umetsu, K. Takahashi, M. Mizuguchi, K. Koyama
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Different Magnetic Field Effects on the ϵ-τ Phase Transformation Between (Mn, Zn)-Al and Mn-Al-C
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IEEE Trans. on Magn.55
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H. Masumitsu, S. Yoshinaga, Y. Mitsui, R.Y. Umetsu, M. Hiroi, Y. Uwatoko, K. Koyama
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Weak itinerant-electron ferromagnetism of CrAlGe modified by 3d transition metal
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J. Magn. Magn. Mater.492
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M. Hamasaki, M. Yamaguchi, L. Chen, M. Obara, Y. Mitsui, K. Koyama
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An educational tool for visualizing acoustic phenomena and measuring velocity, frequency and wavelength of sound waves
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Rep. Pac. Sci. Kagoshima Univ.51
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2018.12An educational tool for visualizing acoustic phenomena and measuring velocity, frequency and wavelength of sound waves
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M. Hamasaki, M. Yamaguchi, L. Chen, M. Obara, Y. Mitsui, K. Koyama
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Development of a simple educational tool of calorimetry for high school students
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Rep. Pac. Sci. Kagoshima Univ.51
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2018.12Development of a simple educational tool of calorimetry for high school students
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Kohei Noguchi, Hayato Masumitsu, Yoshifuru Mitsui, Rie Y. Umetsu, Masahiko Hiroi, Yoshiya Uwatoko, Keiichi Koyama
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Magnetic properties of Mn<inf>1-x</inf>TM<inf>x</inf>AlGe (TM = V, Fe, Cu) with Cu<inf>2</inf>Sb-type structure
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AIP Advances8
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K. Noguchi, H. Masumitsu, Y. Mitsui, R.Y. Umetsu, M. Hiroi, Y. Uwatoko, K. Koyama,
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Magnetic properties of Mn1-xTMxAlGe (TM = V, Fe, Cu) with Cu2Sb-type structure
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AIP Advances 8
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H. Masumitsu, S. Yoshinaga, Y. Mitsui, R.Y. Umetsu, M. Hiroi, Y. Uwatoko, K. Koyama
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Cu-substitution effects on the magnetic properties of weak itinerant electron ferromagnet CrAlGe
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AIP Advances 8
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Y. Okubo, S. Eto, Y. Mitsui, K. Koyama, S. Fujii
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Ab initio investigation of Fe substitution effect on magnetostructural transition of CoMnGe
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AIP Advances 8
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Hayato Masumitsu, Soshi Yoshinaga, Yoshifuru Mitsui, Rie Y. Umetsu, Masahiko Hiroi, Yoshiya Uwatoko, Keiichi Koyama
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Magnetic and structural properties of Mn<inf>1−</inf><inf>x</inf>Cr<inf>x</inf>AlGe (0 ≤ x ≤ 1.0)
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Journal of Magnetism and Magnetic Materials456
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Masahiko Hiroi, Syunya Ishikuma, Iduru Shigeta, Keiichi Koyama, Akihiro Kondo, Koichi Kindo, Hirotaka Manaka, Norio Terada
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Magnetization and magnetic phase diagram of Heusler compounds Fe3-y(Mn1-xV x ) y Si (y = 1 and 1.5)
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Journal of Physics: Conference Series969
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Soshi Yoshinaga, Yoshifuru Mitsui, Rie Y. Umetsu, Yoshiya Uwatoko, Keiichi Koyama
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Pressure Effect on Magnetic Properties of Weak Itinerant Electron Ferromagnet CrAlGe
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JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN87
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Magnetic relaxation dynamics in thermally arrested Cr-modified Mn2Sb
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Y. Mitsui, K. Koyama, M. Ohtsuka, R.Y. Umetsu, R. Kainuma, K. Watanabe
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High field X-ray diffraction study for Ni46.4Mn38.8In12.8Co2.0 metamagnetic shape memory film
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Metals7
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S. Yoshinaga, Y. Mitsui, R. Y. Umetsu, Y. Uwatoko, K. Koyama
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Pressure effect on magnetic properties of weak itinerant electron ferromagnet GrAlGe
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J. Phys. Soc. Jpn87
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2018Pressure effect on magnetic properties of weak itinerant electron ferromagnet GrAlGeReviewed
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M. Onoue, R. Kobayashi, Y. Mitsui, M.Hiroi, K. Takahashi, A. Kondo, K. Kindo, Y. Uwatoko, K. Koyama
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Magnetic and Structural Properties of MnCoGe with Minimal Fe and Sn Substitution
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Mater. Trans. 59
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2018Magnetic and Structural Properties of MnCoGe with Minimal Fe and Sn SubstitutionReviewed
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M. Hiroi, S. Ishikuma, I. Shigeta, K. Koyama, A. Kondo, K. K., H. Manaka, N. Terada
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Magnetization and magnetic phase diagram of Heusler compounds Fe3−y(Mn1−xVx)ySi (y= 1 and 1.5)
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H. Masumitsu, S. Yoshinaga, Y. Mitsui, R.Y. Umetsu, M. Hiroi, Y. Uwatoko, K. Koyama
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Magnetic and structural properties of Mn1-xCrxAlGe (0 ≤ x ≤ 1.0)
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J. Magn. Magn. Mater. 456
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2018Magnetic and structural properties of Mn1-xCrxAlGe (0 ≤ x ≤ 1.0)Reviewed
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A.N. Nwodo, R. Kobayashi, T. Wakamori, Y. Matsumoto, Y. Mitsui, R.Y. Umetsu, M. Hiroi, K. Takahashi, Y. Uwatoko, K. Koyama
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Magnetic Phase Transition of Mn1.9Fe0.1Sb0.9Sn0.1
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IEEE Magn. Lett.9
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In-field annealing and quenching for ferromagnetic MnBi under 19 T
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IEEE Trans. on Magn.55
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Y. Mitsui, R. Kobayashi, Y. Takanaga, A. Takaki, R.Y Umetsu, K. Takahashi, M. Mizuguchi, K. Koyama
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Different Magnetic Field Effects on the ϵ-τ Phase Transformation Between (Mn, Zn)-Al and Mn-Al-C
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IEEE Trans. on Magn.55
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Reactive sintering process of ferromagnetic MnBi under high magnetic fields
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Nwodo Adline N., Kobayashi Ryota, Wakamori Taoto, Matsumoto Yoshihiro, Mitsui Yoshifuru, Hiroi Masahiko, Takahashi Kohki, Umetsu Rie Y., Uwatoko Yoshiya, Koyama Keiichi
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Quasi-First Order Magnetic Transition in Mn<sub>1.9</sub>Fe<sub>0.1</sub>Sb<sub>0.9</sub>Sn<sub>0.1</sub>
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K. Koyama, M. Yamashita, R. Kobayashi, Y. Mitsui, K. Takahashi, S. Uda
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Development of a compact quenching furnace for use in high magnetic fields up to 15 T
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Rep. Pac. Sci. Kagoshima Univ.50
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Magnetic properties of Mn2Sb1-xGex (x = 0.05, 0.08, 0.1) under high pressures
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Characteristics of MnBi Synthesized by Solid-State Reaction Sintering Method in High Magnetic Field
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High field X-ray diffraction study for Ni<inf>46.4</inf>Mn<inf>38.8</inf>In<inf>12.8</inf>Co<inf>2.0</inf> metamagnetic shape memory film
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Enhancement of the Phase Formation Rate during In-Field Solid-Phase Reactive Sintering of Mn-Bi
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Magnetic properties of weak itinerant electron ferromagnet CrAlGe
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J. Phys. Conf. Ser.868
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Pressure Effect on Magnetism of Weak Itinerant Electron Ferromagnet Ni74.6Al25.4
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IEEE Magn. Lett.8
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Thermal Transformation Arrest Phenomena in Mn2Sb0.9Sn0.1
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IEEE Magn. Lett.8
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High-field magnetization of Heusler compound Fe2Mn1-xVxSi
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Development of a compact quenching furnace used under high magnetic fields
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Annealing temperature and magnetic field effects for ε−τ transformation in Mn-Al alloys
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IEEE Magn. Lett.8
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Development of a Compact Quenching Furnace for Use in High Magnetic Fields
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Magnetic field effects on the morphology of Bi-Mn alloy prepared by solid-phase reactive sintering
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K. Abematsu, Y. Mitsui, A. Taira, D. Miyazaki, A. Takaki, R.Y. Umetsu, K. Takahashi, K. Koyama
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Magnetic Field Effects on Reactive Sintering of MnBi
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AIP Conf. Proc. 1763
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2016.8Magnetic Field Effects on Reactive Sintering of MnBiReviewed
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T. Wakamori, Y. Mitsui, K. Takahashi, R.Y. Umetsu, M. Hiroi, K. Koyama
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High Field X-ray Diffraction Measurements of Mn2Sb0.95Ge0.05
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AIP Conf. Proc. 1763
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2016.8High Field X-ray Diffraction Measurements of Mn2Sb0.95Ge0.05Reviewed
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K. Ozono, Y. Mitsui, R. Y. Umetsu, M. Hiroi, K. Takahashi, K. Koyama
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Magnetic and Structural Properties of MnCo1-xFexGe (0 ≤ x ≤ 0.12)
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API Conf. Proc.1763
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K. Ozono, Y. Mitsui, M. Hiroi, R.Y. Umetsu, K. Takahashi, K. Matsubayashi, Y. Uwatoko, K. Koyama
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Magnetic and Structural Properties of Metamagnetic MnCo0.92Fe0.08Ge Compound
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Mater. Trans.57
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Observation of a Metamagnetic Transition of FeRh Alloy under High Magnetic Fields and High Temperatures
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J. Japan Inst. Met. Mater.80
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Magnetic field effects on liquid-phase reactive sintering of MnBi
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Kosuke Ozono, Yoshifuru Mitsui, Rie. Y. Umetsu, Masahiko Hiroi, Kohki Takahashi, Keiichi Koyama
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Magnetic and Structural Properties of MnCo1-xFexGe (0 <= x <= 0.12)
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FRONTIERS IN MATERIALS SCIENCE (FMS2015)1763
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Magnetic properties of Cr-based ternary compound CrAlGe
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Physics Procedia75
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2015.12Magnetic properties of Cr-based ternary compound CrAlGeReviewed
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Y. Mitsui, Y. Yoshimine, R.Y. Umetsu, K. Matsubayashi, Y. Uwatoko, M. Hiroi, K. Koyama
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Pressure Effect on the Martensitic Transformation and Magnetic Properties of Mn2−xNi1+xGa
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鹿児島大学理学部紀要48
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K. Koyama, D. Shimada, Y. Adachi, H. Orihashi, D. Mitsunaga, M. Hiroi, Y. Mitsui, S. Kimura, K. Matsubayashi, Y. Uwatoko
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Magnetic and electrical properties of Mn2Sb1−xZx (Z = Ge, Sn) under high pressures and high magnetic fields
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In-situ observation and differential thermal analysis of MnBi in high magnetic fields
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Physics Procedia75
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R. Onodera, S. Kimura, K. Watanabe, Y. Yokoyama, A. Makino, K. Koyama
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Nucleation control for fine nano crystallization of Fe-based amorphous alloy by high-magnetic-field annealing
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Y. Mitsui, Y. Ikehara, K. Takahashi, S. Kimura, G. Miyamato, F. Furuhara, K. Watanabe, K. Koyama
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Fe-Fe3C binary phase diagram in high magnetic fields
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Yoshifuru Mitsui, Yuki Yoshimine, Rie Y. Umetsu, Kazuyuki Matsubayashi, Yoshiya Uwatoko, Masahiko Hiroi, Keiichi Koyama
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Pressure Effect on the Martensitic Transformation and Magnetic Properties of Mn2-xNi1+xGa
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鹿児島大学理学部紀要48
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Site Preference and Stabilization of Antiferromagnetism in M-Substituted Mn<sub>2−</sub><i><sub>x</sub></i>M<i><sub>x</sub></i>Sb (M = Ti, Cr, Co, or Cu)
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MATERIALS TRANSACTIONS56
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HfV2の強磁場と高圧下における磁気的,熱伝的及び構造的特性
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鹿児島大学理学部紀要47
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T. Kakimoto, J. Goto, S. Fujii, K. Koyama and S. Ishida
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Electronic and magnetic properties of Mn2Sb1-xAsx (x = 0, 0.5, 1)
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T.M. Pan,C.H. Chen, J.L. Her, K. Koyama
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Comparison of structural and electrical properties of Lu2O3 and Lu2TiO5 gate dielectrics for alpha-InGaZnO thin-film transistors
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Electrical characteristics of GdTiO3 gate dielectric for amorphous InGaZnO thin-film transistors
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Thin Solid Films569
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Magnetic field effect on the liquid boundary of Bi-Mn binary system
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AIP Conference Proceedings1618
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T.M. Pan, F.H. Chen, M.N. Hung, J.L. Her, K. Koyama
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Structural Properties and Electrical Characteristics of High-kappa Tm2O3 Gate Dielectrics for InGaZnO Thin Film Transistors
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NMR Study of Filled Skutterudite Pr0.9Ce0.1Ru4P12
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JPS Conf. Proc.3
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Magnetic Field Effect on α→γ Transformation of Fe-C Alloys by Differential Thermal Analysis under High Magnetic Fields
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Crystallization kinetics of high iron concentration amorphous alloys under high magnetic fields
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K. Abematsu, R.Y. Umetsu, R. Kainuma, T. Kanomata, K. Watanabe and K. Koyama
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Structural and magnetic properties of magnetic shape memory alloy Ni46Mn41In13 under magnetic fields
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三井好古、小山佳一、淡路智、渡辺和雄
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Comparison of High-kappa Gd2O3 and GdTiO3 alpha-InGaZnO Thin-Film Transistors
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Resistive switching behavior in Lu2O3 thin film for advanced flexible memory applications
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NANOSCALE RESEARCH LETTERS9
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Magnetic field effect on magnetic and electrical properties of Mn2-xCuxSb
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IEEE Trans. Magn.50
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K. Ohtake, Y. Mitsui, K. Takahashi, R. Onodera,S. Kimura, K. Watanabe and K. Koyama
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X-ray diffraction measurements of the Fe-Rh alloy under high magnetic fields and at high temperatures
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IEEE Trans. Magn.50
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T.M. Pan, C.H. Chen, J.H. Liu, J.L. Her and. K. Koyama
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Electrical and reliability characteristics of high-kappa HoTiO3 alpha-InGaZnO thin-film transistors
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Y. Yoshimine, D. Mitsunaga, H. Orihashi, D. Shimada, M. Hiroi, R. Onodera, S. Kimura, K. Takahashi and K. Koyama
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Magnetic and electrical properties of Mn2-xNi1+xSb
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Magnetic phase transitions in Er7Rh3 studied on single crystals
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Electronic and Magnetic Properties of Mn<sub>2</sub>Sb<sub>1−</sub><i><sub>x</sub></i>As<i><sub>x</sub></i> (<I>x</I> = 0,0.5,1)
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MATERIALS TRANSACTIONS55
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Magnetic Field Effect on the Liquidus Boundary of Bi-Mn Binary System
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INTERNATIONAL CONFERENCE OF COMPUTATIONAL METHODS IN SCIENCES AND ENGINEERING 2014 (ICCMSE 2014)1618
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Structural and Magnetic Properties of Magnetic Shape Memory Alloy Ni<sub>46</sub>Mn<sub>41</sub>In<sub>13</sub> under Magnetic Fields
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Structural Properties and Electrical Characteristics of high-kappa GdTiO3 Gate Dielectrics for InGaZnO Thin-Film Transistors
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Synthesis and diffusion of MnBi in high magnetic fields
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The International Symposium on Ecotopia Science 2013 and The 5th International Symposium on Advanced Materials Development and Integration of Novel Structural Metallic and Inorganic Materials (ISETS’13 and AMDI-4)
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Magnetic and electronic structures and Cobalt or Copper substituted Mn2Sb
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後藤純哉、柿本貴俊、藤井伸平、小山佳一
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Electronic and magnetic structures of Cobalt substituted Mn2Sb
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日本金属学会誌77
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Thermodynamic assessment for the Bi-Mn binary phase diagram in high magnetic fields
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Thermal analysis on MnBi in high magnetic fields up to 45 T
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Daisuke Shimada, Hiroki Orihashi, Daisuke Mitsunaga, Masakazu Ito, Masahiko Hiroi, Keiichi Koyama, Reisho Onodera, Kohki Takahashi, Kazuyuki Matsubayashi, Yoshiya Uwatoko
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Magnetic properties of Mn2Sb1-x Ge (x) (0.05 a parts per thousand currency sign x a parts per thousand currency sign 0.2) in high magnetic fields
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JOURNAL OF THE KOREAN PHYSICAL SOCIETY63
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R. Onodera, S. Kimura, K. Watanabe, Y. Yokoyama, A. Makino and K. Koyama
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Isothermal Crystallization of Iron-Based Amorphous Alloys in a High Magnetic Field
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D. Shimada, H. Orihashi, D. Mitsunaga, M. Ito, M. Hiroi, K. Koyama, R. Onodera, K. Takahashi, K. Matsubayashi, Y. Uwatoko
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Magnetic properties of Mn2Sb1-xGex (0.05 ? x ? 0.2) in high magnetic fields
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A.V. Andreev, E.A. Tereshina, D.I. Gorbunov, E. Santava, J. Sebek, M. Zacek, Y. Homma, Y. Shiokawa, I. Satoh, t. Yamamura, T. Komatsubara, K. Watanabe and K. Koyama
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Magnetic anisotropy in intermetallic compounds containing both Uranium and 3d-metal
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Multi-step metamagnetic processes of PrPd2Si2 single crystal
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J. Korean Phys. Soc.63
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Y. Adachi, T. Kitai, K. Koyama, H. Yoshika, and T. Kaneko
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Magnetization curves of TbZn2 in high magnetic fields
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J. Korean Phys. Soc.62
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Antiferromagnetic transition in Ru2CrSi in magnetic fields
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X. Xu, T. Kihara, M. Tokunagam, A. Matsuo, W. Ito, R.Y. Umetsu, K. Koyama, R. Kainuma
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Thermal transformation arrest phenomenon in the metamagnetic shape memory alloys
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ICFSMA’13 The Fourth International Conference on Ferromagnetic Shape Memory Alloys, Conference Proceedings
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H. Orihashi, M. Hiroi, Y. Mitsui, K. Takahashi, K. Watanabe, K. Matsubayashi, Y. Uwatoko and K. Koyama,
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Magnetic and Structural Properties of Mn1.8Co0.2Sb under High Magnetic Fields
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Mater. Trans.54
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T. Sakon, K. Koyama, O. Kamiya, S. Awaji, S. Nakamura, T. Nojima, H. Nojiri, K. Watanabe, and M. Hiroi
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High-field magnetization measurements of Fe2MnSi
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S. Kimura, K. Okunishi, M. Hagiwara, K. Kindo, Z. He, T. Taniyama, M. Itoh, K. Koyama, and K. Watanabe
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Collapse of Magnetic Order of the Quasi One-Dimensional Ising-Like Antiferromagnet BaCo2V2O8 in Transverse Fields
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K. Koyama, K. Watanabe, O. Tegus, E. Bruck, K.H.J. Buschow, F.R. de Boer
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X-Ray Powder Diffraction Studies on MnFeP0.78Ge0.22 in High Magnetic Fields
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Bi-Mn Binary Phase Diagram in High Magnetic Fields
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R. Onodera, S. Kimura, K. Watanabe, S. Lee, Y. Yokoyama, A. Makino and K. Koyama
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Magnetic Field Effects on Crystallization of Iron-Based Amorphous Alloys
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I. Shigeta, Y. Sakuraba, S. Kimura, K. Koyama, K. Watanabe, K. Takanashi, and M. Hiroi,
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Transport and magnetic properties of fully-epitaxial superconducting NbN/half-metallic Heulser alloys Co2MnSi bilayer films
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R.Y. Umetsu, D. Kikuchi, K. Koyama, K. Watanabe, Y. Yamaguchi, R. Kainuma, T. Kanomata
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Site occupancy and magnetic moment of Fe in Ni2Mn0.3Fe0.7Ga alloy by neutron powder diffraction study
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The role of adiponectin multimers in anorexia nervosa
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Heat-treatment processing for MnBi in high magnetic fields
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Magnetic and Electronic Structures of Cobalt or Copper Substituted Mn<sub>2</sub>Sb
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MATERIALS TRANSACTIONS54
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Orihashi Hiroki, Hiroi Masahiko, Mitsui Yoshifuru, Takahashi Kohki, Watanabe Kazuo, Matsubayashi Kazuyuki, Uwatoko Yoshiya, Koyama Keiichi
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Magnetic and Structural Properties of Mn<sub>1.8</sub>Co<sub>0.2</sub>Sb under High Magnetic Fields
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アンドレーエフ反射法によるハーフメタル型ホイスラー合金Co2MnSiのスピン分極率測定
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鹿児島大学理学部紀要46
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Transport and magnetic properties of fully-epitaxial superconducting NbN/half-metallic Heulser alloy Co<sub>2</sub>MnSi bilayer films
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Shigeta I., Sakuraba Y., Molenaar C. G., Beukers J. N., Kimura S., Golubov A. A., Brinkman A., Koyama K., Watanabe K., Takanashi K., Hiroi M.
.
27aXA-13 Transport properties of half-metallic Heusler alloy/superconductor junctions II
.
Meeting Abstracts of the Physical Society of Japan68.1.3
(
0
)
537
201327aXA-13 Transport properties of half-metallic Heusler alloy/superconductor junctions II
-
Mitsui Yoshifuru, Koyama Keiichi, Watanabe Kazuo
.
Bi–Mn Binary Phase Diagram in High Magnetic Fields
.
MATERIALS TRANSACTIONS54
(
2
)
242
-
245
2013
-
J.A. Monroe, I. Karaman, B. Basaran, W. Ito, R.Y. Umetsu, R. Kainuma, K. Koyama, Y.I. Chumlyakov
.
Direct measurement of large reversible magnetic-field-induced strain in Ni-Co-Mn-In metamagnetic shape memory alloys
.
Acta Materialia60
(
20
)
6883
-
6891
2012.12Direct measurement of large reversible magnetic-field-induced strain in Ni-Co-Mn-In metamagnetic shape memory alloysReviewed
-
Tasuku Inomata, Michiaki Matsukawa, Daichi Kimura, Yoshiaki Yamato, Satoru Kobayashi, Ramanathan Suryanarayanan, Sigeki Nimori, Keiichi Koyama, Kohki Takahashi, Kazuo Watanabe, Norio Kobayashi
.
Suppression of the low-temperature phase-separated state under pressure in (Eu1-xGdx)(0.6)Sr0.4MnO3 (x=0,0.1)
.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS324
(
22
)
3863
-
3869
2012.11Reviewed
-
K. Koyama, Y. Mitsui, E.S. Choi, Y. Ikehara, E. Palm, and K. Watanabe
.
Controlled Equilibrium State of Ferromagnetic MnBi by High Magnetic Fields
.
Proceedings of the 22nd International Workshop on Rare-Earth Permanent Magnets and their Applications, (Nagasaki, 2012)
110
-
113
2012.9Controlled Equilibrium State of Ferromagnetic MnBi by High Magnetic Fields
-
T. Inomata, M. Matsukawa, D. Kimura, Y. Yamato, S. Kobayashi, R. Suryanarayanan, S. Nimori, K. Koyama, K. Takahashi, K. Watanabe, N. Kobayashi
.
Suppression of the low-temperature phase-separated state under pressure in (Eu1-xGdx)0.6Sr0.4MnO3 (x= 0, 0.1)
.
J. Magn. Magn. Mater.324
3863
-
3869
2012.7Suppression of the low-temperature phase-separated state under pressure in (Eu1-xGdx)0.6Sr0.4MnO3 (x= 0, 0.1)Reviewed
-
折橋広樹、満永大輔、廣井政彦、三井好古、高橋弘紀、渡辺和雄、小山佳一
.
強磁場 X 線回折実験による Mn1.8Co0.2Sb の 磁場中結晶評価
.
日本金属学会誌76
(
4
)
246
-
250
2012.4強磁場 X 線回折実験による Mn1.8Co0.2Sb の 磁場中結晶評価Reviewed
-
S. Ebisu, K. Koyama, T. Horikoshi, M. Kokita, S. Nagata
.
Extremely broad hysteresis in the magnetization process of alpha-Dy2S3 single crystal induced by high field cooling
.
26TH INTERNATIONAL CONFERENCE ON LOW TEMPERATURE PHYSICS (LT26), PTS 1-5400
(
PART 3
)
2012
-
Orihashi Hiroki, Mitsunaga Daisuke, Hiroi Masahiko, Mitsui Yoshifuru, Takahashi Kohki, Watanabe Kazuo, Koyama Keiichi
.
X-ray Diffraction Study on Crystal Structure of Mn<sub>1.8</sub>Co<sub>0.2</sub>Sb under High Magnetic Fields
.
Journal of the Japan Institute of Metals and Materials76
(
4
)
246
-
250
2012
-
Y. Mitsui,K. Koyama,K. Takahashi, and Kazuo Watanabe
.
Development of an x-ray diffraction camera used in magnetic fields up to 10 T
.
Rev. Sci. Instrum.82
125104(1)
-
125104(6)
2011.12Development of an x-ray diffraction camera used in magnetic fields up to 10 TReviewed
-
廣井政彦、小山佳一、伊藤昌和、重田 出
.
ヘリウム液化装置
.
鹿児島大学理学部紀要44
27
-
32
2011.12ヘリウム液化装置
-
Masakazu Ito, Yuji Nagi, Naotoshi Kado, Shinpei Urakawa, Takuro Ogawa, Akihiro Kondo, Keiichi Koyama, Kazuo Watanabe, Koichi Kindo
.
Magnetic properties of spinel FeCr2S4 in high magnetic field
.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS323
(
24
)
3290
-
3293
2011.12Reviewed
-
K. Oikawa, Y. Mitsui, K. Koyama, K. Anzai
.
Thermodynamic Assessment of the Bi-Mn System
.
MATERIALS TRANSACTIONS52
(
11
)
2032
-
2039
2011.11Thermodynamic Assessment of the Bi-Mn SystemReviewed
-
M. Yamamoto, S. Sekida, T. Fukuda, T. Kakeshita, K. Takahashi,K. Koyama, H. Nojiri
.
A new type of FCT martensite phase in single-crystalline Fe(3)Pt Invar alloy
.
JOURNAL OF ALLOYS AND COMPOUNDS509
(
34
)
8530
-
8533
2011.8A new type of FCT martensite phase in single-crystalline Fe(3)Pt Invar alloyReviewed
-
Masataka Yamamoto, Sayaka Sekida, Takashi Fukuda, Tomoyuki Kakeshita, Kohki Takahashi, Keiichi Koyama, Hiroyuki Nojiri
.
A new type of FCT martensite phase in single-crystalline Fe3Pt Invar alloy
.
JOURNAL OF ALLOYS AND COMPOUNDS509
(
34
)
8530
-
8533
2011.8Reviewed
-
H. Kato,K. Koyama, K. Takahashi
.
Crystallization of Nd-Co-B nanocomposite ribbons in high magnetic fields
.
JOURNAL OF APPLIED PHYSICS109
(
7
)
07A726
2011.4Crystallization of Nd-Co-B nanocomposite ribbons in high magnetic fieldsReviewed
-
Y. Murano, M. Matsukawa, S. Ohuchi, S. Kobayashi, S. Nimori, R. Suryanarayanan, K. Koyama, N. Kobayashi
.
Effect of pressure on the magnetic, transport, and thermal-transport properties of the electron-doped manganite CaMn1-xSbxO3
.
Phys. Rev. B 83
(
5
)
54437
-
-13
2011.2Effect of pressure on the magnetic, transport, and thermal-transport properties of the electron-doped manganite CaMn1-xSbxO3Reviewed
-
K. Koyama, Y. Mitsui, E.S. Choi, Y. Ikehara, E.C. Palm, K. Watanabe
.
Change of the equilibrium state of ferromagnetic MnBi by high magnetic fields
.
J. Alloys. Comp.509
L78
-
L80
2011.1Change of the equilibrium state of ferromagnetic MnBi by high magnetic fieldsReviewed
-
R.Y. Umetsu K. Ito, K. Koyama, T. Kanomata, K. Ishida and R. Kainuma,
.
Kinetic arrest behavior in martensitic transformation of NiCoMnSn metamagnetic shape memory alloy
.
J. Alloys and Comp.509
1389
-
1393
2011.1Kinetic arrest behavior in martensitic transformation of NiCoMnSn metamagnetic shape memory alloyReviewed
-
M. Ito, Y. Nagi,N. Kado, S. Urakawa,T. Ogawa, A. Kondo,K. Koyama, K. Watanabe, K. Kindo
.
Magnetic properties of spinel FeCr(2)S(4) in high magnetic field
.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS323
(
24
)
3290
-
3293
2011Magnetic properties of spinel FeCr(2)S(4) in high magnetic fieldReviewed
-
Koshi Takenaka, Takashi Shibayama, Kazuko Asano, Keiichi Koyama
.
Magnetostructural Correlations in Nitrogen-Deficient Antiperovskite Mn3CuN1-delta
.
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN79
(
7
)
2010.7Magnetostructural Correlations in Nitrogen-Deficient Antiperovskite Mn3CuN1-deltaReviewed
-
H Nishihara, Y Furutani, T Wada, T Kanomata, K Kobayashi, R Kainuma, K Ishida, K Koyama, K Watanabe
.
Hyperfine coupling constant for 59Co estimated from a high-field susceptibility and high-field NMR shift in ferromagnetic Co2TiGa and Co2VGa
.
J. Phys. Conf. Ser.200
32052
2010.1Hyperfine coupling constant for 59Co estimated from a high-field susceptibility and high-field NMR shift in ferromagnetic Co2TiGa and Co2VGaReviewed
-
K. Takenaka, T. Shibayama, K. Asano and K. Koyama
.
Magnetostructural Correlations in Nitrogen-Deficient Antiperovskite Mn3CuN1-δ
.
J. Phys. Soc. Jpn.79
73706
2010Magnetostructural Correlations in Nitrogen-Deficient Antiperovskite Mn3CuN1-δReviewed
-
Y.Mitsui, K. Koyama, W. Ito, R.Y. Umetsu, R. Kainuma, K. Watanabe
.
Observation of Reverse Transformation in Metamagnetic Shape Memory Alloy Ni40Co10Mn34Al16 by High-Field X-Ray Diffraction Measurements
.
Materials Transactions51
1648
-
1650
2010Observation of Reverse Transformation in Metamagnetic Shape Memory Alloy Ni40Co10Mn34Al16 by High-Field X-Ray Diffraction MeasurementsReviewed
-
M. Fukuhara, H. Yoshida, K. Koyama, A. Inoue, Y. Miura
.
Superconductivity of Ni-Nb-Zr-H Glassy Alloys with Nanoclusters
.
J. Nanosci. Nanotech.10
4975
-
4978
2010Superconductivity of Ni-Nb-Zr-H Glassy Alloys with NanoclustersReviewed
-
K. Watanabe, S. Awaji, K. Koyama, G. Nishijima, K. Takahashi K, and Y. Sasaki
.
Tohoku High Magnetic Field Research Activities Using Cryogen-Free Superconducting Magnets
.
J. Low Temp. Phys.159
370
-
373
2010Tohoku High Magnetic Field Research Activities Using Cryogen-Free Superconducting MagnetsReviewed
-
M. Fukuhara, H. Yoshida, K. Koyama, A. Inoue, and Y. Miura
.
Electronic transport behaviors of Ni-Nb-Zr-H glassy alloys
.
J. Appl. Phys.107
33703
2010Electronic transport behaviors of Ni-Nb-Zr-H glassy alloysReviewed
-
T. Shigeoka, T. Fujiwara, K. Koyama, K. Watanabe, and Y. Uwatoko
.
High Field Metamagnetism of PrRh2Si2 Single Crystal Compound Having Anomalously High NSel Temperature
.
J. Low Temp. Phys.159
42
-
45
2010High Field Metamagnetism of PrRh2Si2 Single Crystal Compound Having Anomalously High NSel TemperatureReviewed
-
A.V. Andreev, E.A. Tereshina, E. Santava, J. Sebek, K. Koyama, and K. Watanabe
.
Sublattice contributions to the magnetism of UFe5Al7 and UFe6Al6
.
J. Alloys Comp. 492
52
-
55
2010Sublattice contributions to the magnetism of UFe5Al7 and UFe6Al6Reviewed
-
X. Xu, W. Ito, R.Y. Umetsu, K. Koyama, R. Kainuma, and K. Ishida
.
Kinetic Arrest of Martensitic Transformation in Ni33.0Co13.4Mn39.7Ga13.9 Metamagnetic Shape Memory Alloy
.
Mater. Trans.51
469
-
471
2010Kinetic Arrest of Martensitic Transformation in Ni33.0Co13.4Mn39.7Ga13.9 Metamagnetic Shape Memory AlloyReviewed
-
P.J. Shamberger, A.B. Pakhomov, K. Koyama, F.S. Ohuchi
.
Deviation of the magnetization change from the structural phase transition temperature in polycrystalline Ni-Mn-Sn in low magnetic fields
.
Scripta Materialia63
1161
-
1164
2010Deviation of the magnetization change from the structural phase transition temperature in polycrystalline Ni-Mn-Sn in low magnetic fieldsReviewed
-
M. Fukuhara, H. Yoshida, K. Koyama, A. Inoue
.
Magnetic-field-induced Coulomb oscillation in Ni-Nb-Zr-H glassy alloys
.
Physica B405
3791
-
3794
2010Magnetic-field-induced Coulomb oscillation in Ni-Nb-Zr-H glassy alloysReviewed
-
M. Yamamoto, T. Fukuda, T. Kakeshita, K. Koyama, H. Nojiri
.
Martensitic transformation in invar Fe3Pt with highly ordered state
.
Physics Procedia10
117
-
119
2010Reviewed
-
Masahiko Hiroi, Tsugumi Rokkaku, Kazuhisa Matsuda, Toru Hisamatsu, Iduru Shigeta, Masakazu Ito, Takuo Sakon, Keiichi Koyama, Kazuo Watanabe, Shintaro Nakamura, Tsutomu Nojima, Tomohito Nakano, Lin Chen, Tetsuya Fujiwara, Yoshiya Uwatoko, Hirotaka Manaka, Norio Terada
.
Ferromagnetism and spin-glass transitions in the Heusler compounds Ru2-x Fex CrSi
.
Physical Review B - Condensed Matter and Materials Physics79
(
22
)
2009.6Ferromagnetism and spin-glass transitions in the Heusler compounds Ru2-x Fex CrSiReviewed
-
A. V. Andreev, K. Koyama, E. A. Tereshina, J. Prokleska, K. Watanabe
.
Magnetoelasticity of (Lu(0.8)Ce(0.2))(2)Fe(17) intermetallic compound
.
JOURNAL OF ALLOYS AND COMPOUNDS477
(
1-2
)
62
-
67
2009.5Reviewed
-
H. C. Hsu, F. C. Chou, K. Koyama, K. Watanabe, H. L. Liu
.
Spin-phonon coupling in antiferromagnetic Bi2Sr2CoO6+delta: An infrared reflectance study
.
PHYSICAL REVIEW B79
(
15
)
2009.4Reviewed
-
Y. Yamato, M. Matsukawa, Y. Murano, R. Suryanarayanan, S. Nimori, M. Apostu, A. Revcolevschi, K. Koyama, N. Kobayashi
.
Colossal electroresistance and colossal magnetoresistive step in paramagnetic insulating phase of single crystalline bilayered manganite (La0.4Pr0.6)(1.2)Sr1.8Mn2O7
.
APPLIED PHYSICS LETTERS94
(
9
)
2009.3Reviewed
-
Yoshifuru Mitsui, Keiichi Koyama, Kazuo Watanabe
.
X-ray diffraction measurements in high magnetic fields and at high temperatures
.
SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS10
(
1
)
2009.3X-ray diffraction measurements in high magnetic fields and at high temperaturesReviewed
-
Y. Furutani, H. Nishihara, T. Kanomata, K. Kobayashi, R. Kainuma, K. Ishida, K. Koyama, K. Watanabe, T. Goto
.
Field-induced-moment nuclear coupling for 59Co in a Heusler alloy Co2TiGa
.
J. Phys.. Conf. Ser.150
42037
-
-4
2009.1Field-induced-moment nuclear coupling for 59Co in a Heusler alloy Co2TiGaReviewed
-
Yoshifuru Mitsui, Keiichi Koyama, Yuko Nakamori, Shin-ichi Orimo, Kazuo Watanabe
.
Magnetic and Structural Phase Transitions in Ferromagnetic MnBi
.
JOURNAL OF THE JAPAN INSTITUTE OF METALS73
(
1
)
40
-
45
2009.1Magnetic and Structural Phase Transitions in Ferromagnetic MnBiReviewed
-
R.Y. Umetsu, W. Ito, K. Ito, K. Koyama, A. Fujita, K. Oikawa, T. Kanomata, R. Kainuma, K. Ishida
.
Anomaly in entropy change between parent and martensite phases in the Ni50Mn34In16 Heusler alloy
.
Scripta Materialia60
25
-
28
2009Anomaly in entropy change between parent and martensite phases in the Ni50Mn34In16 Heusler alloyReviewed
-
三井好古、小山佳一、中森裕子、折茂慎一、渡辺和雄
.
強磁場下における強磁性体MnBiの相転移
.
日本金属学会誌73
40
-
45
2009強磁場下における強磁性体MnBiの相転移Reviewed
-
三井好古、小山佳一、渡辺和雄
.
強磁場・高温X線回折測定用試料電気炉の性能評価
.
J. Magn. Soc. Jpn.33
60
-
63
2009強磁場・高温X線回折測定用試料電気炉の性能評価Reviewed
-
K. Koyama, Y. Mitsui, K. Tahashi and K. Watanabe
.
X-ray powder diffraction camera for high-field experiments
.
J. Phys.: Conf. Ser.156
12018
2009X-ray powder diffraction camera for high-field experimentsReviewed
-
K. Koyama, R. Sakakura and K. Watanabe
.
Development of an extraction type magnetometer under low temperature and high magnetic fields over 20 T by the hybrid magnet
.
J. Phys.: Conf. Ser.156
12019
2009Development of an extraction type magnetometer under low temperature and high magnetic fields over 20 T by the hybrid magnetReviewed
-
Y. Mitsui, K. Koyama and K. Watanabe
.
X-ray diffraction measurements in high magnetic field and at high temperatures
.
Sci. Technol. Adv. Mater.10
14612
2009X-ray diffraction measurements in high magnetic field and at high temperaturesReviewed
-
T. Akiya, H. Kato, M. Sagawa and K. Koyama
.
Enhancement of coercivity in Al and Cu added Nd-Fe-B sintered magnets by high field annealing
.
IOP Conf. Ser.: Mat. Sci. Eng.1
12034
2009Enhancement of coercivity in Al and Cu added Nd-Fe-B sintered magnets by high field annealingReviewed
-
Y. Yamato, M. Matsukawa, Y. Murano, R. Suryanarayanan, S. Nimori, M. Apostu, A. Revcolevschi, K. Koyama, N. Kobayashi
.
Colossal electroresistance and colossal magnetoresistive step in paramagnetic insulating phase of single crystalline bilayered manganite (La0.4Pr0.6)1.2Sr1.8Mn2O7
.
Appl. Phys. Lett.94
92507
2009Colossal electroresistance and colossal magnetoresistive step in paramagnetic insulating phase of single crystalline bilayered manganite (La0.4Pr0.6)1.2Sr1.8Mn2O7Reviewed
-
Y. Yamato, M. Matsukawa, S. Nimori, R. Suryanarayanan, Y. Murano, Y. Nakanishi, M. Apostu, A. Revcolevschi, K. Koyama, and N. Kobayashi
.
Effect of pressure on Lattice distortion, transport and magnetic properties of Pr-substituted La1.2Sr1.8Mn2O7 bilayered manganite
.
J. Phys.: Condens Matter21
486001
2009Effect of pressure on Lattice distortion, transport and magnetic properties of Pr-substituted La1.2Sr1.8Mn2O7 bilayered manganiteReviewed
-
H.C. Hsu, F.C. Chou, K. Koyama, K. Watanabe and H.L. Liu
.
Spin-phonon coupling in antiferromagnetic Bi2Sr2CoO6+δ: An intrared reflectance study
.
Phys. Rev. B79
155109
2009Spin-phonon coupling in antiferromagnetic Bi2Sr2CoO6+δ: An intrared reflectance studyReviewed
-
M. Hiroi M, T. Rokkaku, K. Matsuda, T. Hisamatsu, I. Shigeta, M. Ito, T. Sakon, K. Koyama, K. Watanabe, S. Nakamura, T. Nojima, T. Nakano, L. Chen, T. Fujiwara, Y. Uwatoko, H. Manaka, and N. Terada
.
Ferromagnetism and spin-glass transitions in the Heusler compounds Ru2-xFexCrS
.
Phys. Rev. B79
224423
2009Ferromagnetism and spin-glass transitions in the Heusler compounds Ru2-xFexCrSReviewed
-
A.V. Andreev, K. Koyama, E.A. Tereshina, J. Prokleska, and K. Watanabe
.
Magnetoelasticity of (Lu0.8Ce0.2)2Fe17 intermetallic compound
.
J. Alloys and Compounds477
62
-
67
2009Magnetoelasticity of (Lu0.8Ce0.2)2Fe17 intermetallic compoundReviewed
-
T Kawamata, N Sugawara, M Uesaka, N Kaneko, T Kajiwara, H Yamane, K Koyama, K Kudo, N Kobayashi, Y Koike
.
Single-Crystal Growth of Pb2V3O9 and the Bose-Einstein Condensed State of Triplons Studied by Thermal Conductivity, Specific Heat and Magnetization Measurements
.
J. Phys.: Conf. Ser.150
42087
2009Single-Crystal Growth of Pb2V3O9 and the Bose-Einstein Condensed State of Triplons Studied by Thermal Conductivity, Specific Heat and Magnetization MeasurementsReviewed
-
Y. Yamato, Y. Nakanishi, M. Matsukawa, R. Suryanarayanan, S. Nimori, M. Apostu, A. Revcolevschi, K. Koyama, N. Kobayashi
.
Anomalous pressure effect on steplike magnetostriction of (La0.4Pr0.6)(1.2) Sr1.8Mn2O7 bilayered manganese oxide
.
25TH INTERNATIONAL CONFERENCE ON LOW TEMPERATURE PHYSICS (LT25), PART 4150
2009
-
S. Ebisu, K. Koyama, H. Omote, S. Nagata
.
High field magnetization processes in single crystals of alpha-Tb2S3 and alpha-Dy2S3
.
25TH INTERNATIONAL CONFERENCE ON LOW TEMPERATURE PHYSICS (LT25), PART 4150
2009Reviewed
-
Y. Furutani, H. Nishihara, T. Kanomata, K. Kobayashi, R. Kainuma, K. Ishida, K. Koyama, K. Watanabe, T. Goto
.
Field-induced-moment nuclear Coupling for Co-59 in a Heusler alloy Co2TiGa
.
25TH INTERNATIONAL CONFERENCE ON LOW TEMPERATURE PHYSICS (LT25), PART 4150
2009
-
H. Okada, Y. Kusakari, E. Matsuoka, H. Onodera, K. Koyama, K. Watanabe, T. Kanomata
.
Transport properties of Heusler compounds Ru2CrGe and Ru2CrSn under high magnetic fields
.
25TH INTERNATIONAL CONFERENCE ON LOW TEMPERATURE PHYSICS (LT25), PART 4150
2009
-
E. G. Gerasimov, N. V. Mushnikov, K. Koyama, T. Kanomata, K. Watanabe
.
Positive magnetoresistance and large magnetostriction at first-order antiferro-ferromagnetic phase transitions in RMn(2)Si(2) compounds
.
JOURNAL OF PHYSICS-CONDENSED MATTER20
(
44
)
2008.11Reviewed
-
Y. Yamato, M. Matsukawa, T. Kumagai, R. Suryanarayanan, S. Nimori, M. Apostu, A. Revcolevschi, K. Koyama, N. Kobayashi
.
Effect of pressure on the steplike magnetostriction of single crystalline bilayered manganite (La(0.4)Pr(0.6))(1.2)Sr(1.8)Mn(2)O(7)
.
PHYSICAL REVIEW B78
(
13
)
2008.10Reviewed
-
T. Fujita, H. Okada, K. Koyama, K. Watanabe, S. Maekawa, M. W. Chen
.
Unusually Small Electrical Resistance of Three-Dimensional Nanoporous Gold in External Magnetic Fields
.
PHYSICAL REVIEW LETTERS101
(
16
)
2008.10Reviewed
-
Hiroaki Kato, Takahiro Akiya, Kunihiro Koike, Keiichi Koyama, Masato Sagawa
.
Coercivity enhancement induced by high-magnetic-field annealing in sintered Nd-Fe-B magnets
.
Proceedings of The 20th Workshop on Rare Earth Permanent Magnets and Applications
2008.9Coercivity enhancement induced by high-magnetic-field annealing in sintered Nd-Fe-B magnetsInvited
-
A. V. Andreev, E. A. Tereshina, E. Santava, I. Satoh, T. Yamamura, Y. Shiokawa, K. Koyama, K. Watanabe
.
Magnetic properties of U-2(Fe1-xNix)(13.6)Si-3.4 single crystals
.
JOURNAL OF ALLOYS AND COMPOUNDS461
(
1-2
)
6
-
8
2008.8
-
M. Ohtsuka, J. Sekino, K. Koyama, T. Takagi, K. Itagaki
.
Magnetostructural phase transformation and shape memory effect of Fe-added Ni(2)MnGa films
.
EUROPEAN PHYSICAL JOURNAL-SPECIAL TOPICS158
173
-
178
2008.5Reviewed
-
K. Koyama, H. Onodera, and K. Watanabe
.
Magnetization measurements of DyB2C2 under high pressure and high magnetic fields
.
Physica B403
1607
-
1608
2008Magnetization measurements of DyB2C2 under high pressure and high magnetic fieldsReviewed
-
E.G. Gerasimov, N.V. Nushnikov, K. Koyama, T. Kanomata, and K. Watanabe
.
Positive magnetoresistance and large magnetostriction at first-order antiferro-ferromagnetic phase transitions in RMn2Si2 compounds
.
J. Phys.: Condens. Matter20
445219
2008Positive magnetoresistance and large magnetostriction at first-order antiferro-ferromagnetic phase transitions in RMn2Si2 compoundsReviewed
-
A.V. Andreev, E.A. Tereshina, E. Santava, I. Satoh, T. Yamamura, Y. Shiokawa, K. Koyama, K. Watanabe
.
Magnetic properties of U2(Fe1-xNix)13.6Si3.4 single crystals
.
J. Alloys Comp.461
6
-
8
2008Magnetic properties of U2(Fe1-xNix)13.6Si3.4 single crystalsReviewed
-
Y. Takahashi, T. Harada, T. Kanomata, K. Koyama, H. Yoshida, T. Kaneko, M. Kataoka
.
Magnetoresistance effect of pseudobinary compounds Cr1-xRuxSb2
.
J. Alloys Comp.459
78
-
82
2008Magnetoresistance effect of pseudobinary compounds Cr1-xRuxSb2Reviewed
-
A.V. Andreev, E.A. Tereshina, E. Santava, K. Koyama, Y. Homma, I. Satoh, T. Yamamura, Y. Shiokawa, K. Watanabe
.
Magnetic properties of U2Co17-xSix single crystals
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J. Alloys Comp.450
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T. Sakon, S. Saito, K. Koyama, S. Awaji, I. Sato, T. Nojima, K. Watanabe, M. Motokawa, N.K. Sato
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Magnetic anisotropy study of UGe2 in a static high magnetic field
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J. Phys.: Conf. Ser. 51
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2008Magnetic anisotropy study of UGe2 in a static high magnetic fieldReviewed
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T. Shigeoka, N. Kimura, K. Koyama and K. Watanabe
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High field magnetization of TbCu2Si2 single crystal compound
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J. Phys.: Conf. Ser51
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2008High field magnetization of TbCu2Si2 single crystal compoundReviewed
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Y. Makihara, H. Fujii, T. Fujiwara, K. Watanabe, K. Takahashi, K. Koyama and M. Motokawa
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Magneto-volume effect in the ground and field induced states of Ce2Fe17
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Physica B329-333
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2008Magneto-volume effect in the ground and field induced states of Ce2Fe17Reviewed
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T. Fujiwara, H. Fujii, Y. Uwatoko, K. Koyama, M. Motokawa and T. Shigeoka
.
Dramatic change of the magnetic characteristics in YbMn2Ge2 under high pressures
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Acta Phys. Pol. B (Sp. Iss.)34
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2008Dramatic change of the magnetic characteristics in YbMn2Ge2 under high pressuresReviewed
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K. Koyama, T. Goto, T. Kanomata, R. Note and Y. Takahashi
.
Nonlinear magnetization process of single-crystalline FeSi
.
J. Phys. Soc. Jpn.69
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2008Nonlinear magnetization process of single-crystalline FeSiReviewed
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H. Okada, K. Koyama, M. Nakatake, K. Shimada, H. Namatame, M. Taniguchi, and K. Watanabe
.
Photoemission spectroscopy of spinel-type CuV2S4 single crystal
.
J. Phys. Soc. Jpn77
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2008Photoemission spectroscopy of spinel-type CuV2S4 single crystalReviewed
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H. Okada, K. Koyama, M. Hedo, Y. Uwatoko, and K. Watanabe
.
Pressure-induced metal-insulator transition in spinel compound CuV2S4
.
Phsica B403
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2008Pressure-induced metal-insulator transition in spinel compound CuV2S4Reviewed
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Y. Yamato M. Matsukawa, T. Kumagai, R. Suryanarayanan, S. Nimori, M. Apostu, A. Revcolevschi, K. Koyama, and N. Kobayashi
.
Effect of pressure on the steplike magnetostriction of single crystalline bilayered manganite (La0.4Pr0.6)1.2Sr1.8Mn2O7
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Phys. Rev. B78
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W. Ito, K. Ito, R.Y. Umetsu, R. Kainuma, K. Koyama, K. Watanabe, A. Fujita, K. Oikawa, K. Ishida, T. Kanomata
.
Kinetic arrest of martensitic transformation in the NiCoMnIn metamagnetic shape memory alloy
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Appl. Phys. Lett.92
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2008Kinetic arrest of martensitic transformation in the NiCoMnIn metamagnetic shape memory alloyReviewed
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K. Takahashi, K. Koyama, and K. Watanabe
.
100 mm wide bore cryocooled hybrid magnet for a high field X-ray diffractometer
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IEEE trans. Apply. Superconductivity18
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2008100 mm wide bore cryocooled hybrid magnet for a high field X-ray diffractometerReviewed
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T. Fujita, H. Okada, K. Koyama, K. Watanabe, S. Maekawa and M.W. Chen
.
Unusual Small Electrical Resistance of Three-Dimensional Nanoporous Gold in External Magnetic Fields
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Phys. Rev. Lett.101
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K. Koyama, Y. Mitsui and K. Watanabe
.
Magnetic and structural phase transitions of MnBi under high magnetic fields
.
Sci. Technol. Adv. Mater.9
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2008Magnetic and structural phase transitions of MnBi under high magnetic fieldsReviewed
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M. Ohtsuka, J. Sekino, K. Koyama, T. Takagi, and K. Itagaki
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Magnetostructural phase transformation and shape memory effect of Fe-added Ni2MnGa films
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Eur. Phys. J. Special Topics158
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2008Magnetostructural phase transformation and shape memory effect of Fe-added Ni2MnGa filmsReviewed
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K. Asano, K. Koyama, and K. Takenaka
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Magnetostriction in Mn3CuN
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Appl. Phys. Lett.92
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2008Magnetostriction in Mn3CuNReviewed
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H. Okada, K. Koyama, K. Watanabe, Y. Kusakari, T. Kanomata, and H. Nishihara
.
Magnetic properties of Heusler compounds Ru2CrGe and Ru2CrSn
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Appl. Phys. Lett. 92
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2008Magnetic properties of Heusler compounds Ru2CrGe and Ru2CrSnReviewed
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E.A. Tereshina, A.V. Andreev, K. Koyama, K. Watanabe
.
Magnetostriction at the Metamagnetic Phase Transition in (Lu0.8Ce0.2)2Fe17
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WDS’08 Proceedings of Contributed papers, Part III,
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2008Magnetostriction at the Metamagnetic Phase Transition in (Lu0.8Ce0.2)2Fe17
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Makoto Yoshida, Yumiko Kitano, Yuji Inagaki, Takahiro Sakurai, Motoi Kimata, Susumu Okubo, Hitoshi Ohta, Keiichi Koyama, Mitsuhiro Motokawa, Takayuki Asano, Yoshitami Ajiro
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Observation of direct transitions in the ferromagnetic and antiferromagnetic dimer system (CH3)(2)NH2CUCl3 by high-field ESR
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JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN76
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2007.11Observation of direct transitions in the ferromagnetic and antiferromagnetic dimer system (CH3)(2)NH2CUCl3 by high-field ESRReviewed
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K. Hachitani, H. Amanuma, H. Fukazawa, Y. Kohori, I. Watanabe, K. Koyama, K. Kumagai, C. Sekine, I. Shirotani
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Sm-based filled skutterudite phosphides SmT4P12 (T = fe, ru, os) studied by P-31-NMR and mu SR
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JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS68
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2007.11
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E. A. Tereshina, A. V. Andreev, K. Koyama, Y. Shiokawa, I. Satoh, K. Watanabe
.
Magnetic anisotropy and spin reorientation in U2Co15Si2
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JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS316
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2007.9Reviewed
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A. V. Andreev, K. Koyama, N. V. Mushnikov, V. Sechovsky, Y. Shiokawa, I. Satoh, K. Watanabe
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Interplay between effects of external pressure and dilution of the U sublattice in UCoAl-based materials
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JOURNAL OF ALLOYS AND COMPOUNDS441
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Tetsuya Onogi, Keiichi Koyama, Kazuo Watanabe
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Magnetic properties of MnBi in high magnetic fields and high temperature
.
JOURNAL OF THE JAPAN INSTITUTE OF METALS71
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2007.6Magnetic properties of MnBi in high magnetic fields and high temperatureReviewed
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M. Matsukawa, Y. Yamato, T. Kumagai, A. Tamura, R. Suryanarayanan, S. Nimori, M. Apostu, A. Revcolevschi, K. Koyama, N. Kobayashi
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Steplike lattice deformation of single crystalline (La0.4Pr0.6)(1.2)Sr1.8Mn2O7 bilayered manganite
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PHYSICAL REVIEW LETTERS98
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Experimental investigation of giant magnetocrystalline anisotropy of UGe2
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PHYSICA SCRIPTA75
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2007.4
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S. V. Demishev, A. V. Semeno, A. A. Pronin, N. E. Sluchanko, N. A. Samarin, H. Ohta, S. Okubo, M. Kimata, K. Koyama, M. Motokawa, A. V. Kuznetsov
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Quantum criticality and collective effects in low-dimensional magnet CuGeO3 : Fe probed by high frequency EPR
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JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM20
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105
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M. Yoshida, Y. Kitano, Y. Inagaki, T. Sakurai, M. Kimata, S. Okubo, H. Ohta, K. Koyama, M. Motokawa, T. Asano, and Y. Ajiro
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Observation of direct transitions in the ferromagnetic and antiferromagnetic dimmer system (CH3)2NH2CuCl3 by high-field ESR
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J. Phys. Soc. Jpn76
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M. Matsukawa, A. Tamura, S. Nimori, R. Suryanarayanan, T. Kumagai, Y. Nakanishi, M. Apostu, A. Revcolevschi, K. Koyama, N. Kobayashi
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Anomalous pressure effect on the remanent lattice striction of a (La,Pr)(1.2)Sr1.8Mn2O7 bilayered manganite single crystal
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PHYSICAL REVIEW B75
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Evgeniya A. Tereshina, Hajime Yoshida, Alexander V. Andreev, Irina S. Tereshina, Keiichi Koyama, Takeshi Kanomata
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Magnetism of a Lu2Fe17H Single Crystal under Pressure
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JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN76
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2007.1Reviewed
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M. Kimata, Y. Oshima, H. Ohta, K. Koyama, M. Motokawa, H. M. Yamamoto, R. Kato
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Low-temperature Fermi surface of the organic conductor beta(')-(BEDT-TTF)(TCNQ)((1-x))(F1-TCNQ)(x) (x=0,0.05) from magnetooptical measurements
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PHYSICAL REVIEW B75
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Alexander V. Andreev, Keiichi Koyama, Nikolai V. Mushnikov, Vladimir Sechovsky, Yoshinobu Shiokawa, Isamu Satoh, Kazuo Watanabe
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Transition from Ferromagnetism to Metamagnetism under Pressure in a U0.94Y0.06CoAl Single Crystal
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JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN76
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K. Koyama, S. Miura, H. Okada, T. Shigeoka, K. Watanabe
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Magnetic entropy changes of SmMn2Ge2 under high pressure
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Mater. Trans.48
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2007Magnetic entropy changes of SmMn2Ge2 under high pressureReviewed
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K. Hachitani, H. Amanuma, H. Fukazawa, Y. Kohori I. Watanabe, K. Koyama, K. Kumagai, C. Sekine and I. Shirotani
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Sm-based filled Skutterudite phosphides SmT4P12 (T=Fe, Ru, Os) studied by 31P-NMR and μSR
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J. Phys. Chem. Solid68
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2007Sm-based filled Skutterudite phosphides SmT4P12 (T=Fe, Ru, Os) studied by 31P-NMR and μSRReviewed
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M. Matsukawa, Y. Yamato, T. Kumagai, A. Tamura, R. Suryanarayanan, S. Nimori, M. Apostu, A. Recolevschi, K. Koyama, and N. Kobayashi
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Steplike lattice deformation of single crystalline (La0.4Pr0.6)1.2Sr1.8Mn2O7 bilayered Manganite
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Phys. Rev. Lett.98
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Magnetic anisotropy and spin reorientation U2Co15Si2
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J. Magn. Magn. Mater316
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A.V. Andreev, E.A. Tereshina, E. Santava, K. Koyama, Y. Homma, I. Satoh, T. Yamamura, Y. Shiokawa, K. Watanabe
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Crystal structure and magnetic properties of U2Co17-xSix single crystals
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J. Magn. Magn. Mater.310
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2007Crystal structure and magnetic properties of U2Co17-xSix single crystalsReviewed
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Magnetic behavior of TbRh2Si2 single crystal
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J. Magn. Magn. Mater.310
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2007Magnetic behavior of TbRh2Si2 single crystalReviewed
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T. Sakon, S. Saito, K. Koyama, S. Awaji, I. Sato, T. Nojima, K. Watanabe and N.K. Sato
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Experimental investigation of giant magnetocrystaline anisotropy of UGe2
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Phys. Scr.75
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2007Experimental investigation of giant magnetocrystaline anisotropy of UGe2Reviewed
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M. Matsukawa, A. Tamura, S. Nimmori, R. Suryanarayanan, T. Kumagai, Y. Nakanishi, M. Apostu, A. Revcolevschi, K. Koyama, and N. Kobayashi
.
Anomalous pressure effect on the remanent lattice striction of a (La, Pr)1.2Sr1.8Mn2O7 bilayered manganite single crystal
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Phys. Rev. B75
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A.V. Andreev, K. Koyama, N.M. Mushnikov, V. Sechovsky, Y. Shiokawa, I. Satoh, and K. Watanabe
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Interplay between effects of external pressure and dilution of the U-sublattice in UCoAl-base materials
.
J. Alloys Comp.441
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2007Interplay between effects of external pressure and dilution of the U-sublattice in UCoAl-base materialsReviewed
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O. Tegus, K. Koyama, J.L. Her, K. Watanabe, E. Bruck, K.H.J. Buschow, F.R. de Boer
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X-ray diffraction on MnFeP0.46As0.54 in a magnetic field
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Physica B392
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2007X-ray diffraction on MnFeP0.46As0.54 in a magnetic fieldReviewed
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K. Wang, T. Fujita, M.W. Chen, T.G. Nieh, H. Okada, K. Koyama, W. Zhang and A. Inoue
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Electrical conductivity of a bulk metallic glass composite
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Appl. Phys. Lett.91
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2007Electrical conductivity of a bulk metallic glass compositeReviewed
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H. Kato, T. Akiya, M. Sagawa, K. Koyama and T. Miyazaki
.
Effect of high magnetic field on the coercivity in sintered Nd-Fe-B magnets
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J. Magn. Magn. Matter.310
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2007Effect of high magnetic field on the coercivity in sintered Nd-Fe-B magnetsReviewed
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Magnetic phase transition of MnBi under high magnetic fields and high temperature
.
Mater. Trans.48
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2007Magnetic phase transition of MnBi under high magnetic fields and high temperatureReviewed
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一次相転移物質MnBi の高温・強磁場磁気特性
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2007一次相転移物質MnBi の高温・強磁場磁気特性Reviewed
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K. Koyama, T. Iagarashi, H. Okada, K. Watanabe, T. Kanomata, R. Kainuma, W. Ito, K. Oikawa, K. Ishida
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Magnetic and thermoelectric properties of Ni50Mn36Sn14 in high magnetic fields
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2007Magnetic and thermoelectric properties of Ni50Mn36Sn14 in high magnetic fieldsReviewed
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Low-temperature Fermi surface of the organic conductor β”-(BEDT-TTF)(TCNQ)(1-x)(F1-TCNQ)x (x=0, 0.05) from magnetooptical measurements
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Appearance of successive phase transition in SmRU4P12 under high magnetic fields probed by P-31 nuclear magnetic resonance
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Low-temperature structural study of the TbPd1-xNixAl series
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K Yagasaki, S Notsu, Y Takaesu, T Nakama, E Sakai, K Koyama, K Watanabe, AT Burkov
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X-Ray diffraction on rare earth-3d Laves phase compound ErCo2 in magnetic field
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Kazuo Watanabe, Asaya Fujita, Keiichi Koyama
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Special issue on Research on New Magnetic Properties and Applications to Materials Science in Itinerant-Electron Systems - Preface
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Detailed fermi surface topology of the quasi-one-dimensional conductor (DMET)(2)I-3
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Magnetic properties of Ce(Fe1-xCox)(2) under high pressure
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H Kato, H Kubota, K Koyama, T Miyazaki
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Fabrication of SmFe12/alpha-Fe thin films as anisotropic nanocomposite magnet
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Magnetic properties of Ce(Fe1-xCox)2 under high pressure
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Appearance of successive phase transition in SmRu4P12 under high magnetic fields probed by 31P nuclear magnetic resonance
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Y. Adachi, K. Izaki, T. Kitai, H. Yoshida, K. Koyama, H. Morita, H. Onodera, T. Kawae and T. Kaneko
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Field-induced transitions in single crystals of TbCu4Ag and GdCu4Ag
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Magnetic properties of NdxEr1-xMn6Sn6 alloys
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Magnetic structure of Y1-xNdxMn6Sn6 alloys
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Physica B385-386
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NMR properties of half-Heusler CoVSb
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Magnetic properties of rare-earth compounds GdPdIn and TmPdIn
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Low-temperature structural study of the TbPd1-xNix series
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Magnetic ordering in ternary germanide Nd2CuGe6
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Specific heat measurement of the spinel compound CuV2S
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Mulitstep metamagnetism of NdRh2Ge2 single crystal
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Interplay between hydrogenation and pressure effects in magnetism of Lu2Fe17 single crystal
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High Pressure Res.26
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A.V. Andreev, K. Koyama, N.M. Mushnikov, V. Sechovsky, Y. Shiokawa, I. Satoh, and K. Watanabe
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Interplay between effects of external pressure and dilution of the U sublattice in UCoAl-base materials: the U0.94Y0.06CoAl case
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High field x-ray diffraction studies on magnetic refrigerants
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Cryocooled superconducting magnets for high magnetic fields at the HFLSM and future collaboration with the TML
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Development of an extraction type magnetometer under high pressure and high magnetic fields over 200 kOe in the hybrid magnet
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J. Phys.: Conf. Ser.51
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K. Takahashi, S. Awaji, Y. Sasaki, K. Koyama and K. Watanabe
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Design of an 8 MW water-cooled magnet for a 35 T hybrid magnet at the HFLSM
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2004X-ray diffraction study in high magnetic fields of magnetovolume effect in itinerant-electron metamagnetic La(Fe0.88Si0.12)13 compoundReviewed
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M. Kimata, Y. Oshima, H. Ohta, K. Koyama, M. Motokawa, H.M. Yamamoto, and R. Kato
.
Magnetooptical measurement of β’’-(BEDT-TTF)(TCNQ)
.
Physica B346-347
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2004Magnetooptical measurement of β’’-(BEDT-TTF)(TCNQ)Reviewed
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K. Kobayashi, T. Akiya, H. Kato and K. Koyama
.
Relation between a specific lattice expansion and magnetic anisotropy in Sm2Fe17Nx (0<x<3) samples of intermediate nitrogen concentration
.
proceedings for 18th workshop on high performance magnets & their applications, (Annecy, 2004)
521
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528
2004Relation between a specific lattice expansion and magnetic anisotropy in Sm2Fe17Nx (0<x<3) samples of intermediate nitrogen concentrationReviewed
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K. Watanabe, G. Nishijima, S. Awaji, K. Takahashi, K. Koyama, M. Motokawa, M. Ishizuka, T. Hasebe, and J. Sakuraba
.
Advances in the first cryogen-free hybrid magnet
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IEEE Trans. Appl. Superc. 14
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T. Hasebe, S. Okada, M. Ishizuka, T. Tsurudone. T. Ito, H. Ookubo, J. Sakuraba, K. Watanabe, S. Awaji, K. Koyama, G. Nishijima, and K. Takahashi
.
Design of a cryocooler-cryocooled large bore superconducting magnet for a 30T hybrid magnet
.
IEEE Trans. Appl. Superc.14
368
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371
2004Design of a cryocooler-cryocooled large bore superconducting magnet for a 30T hybrid magnetReviewed
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T. Kurusu, M. Ono, S. Hanai, M. Kyoto, H. Takigami, H. Takano, K. Watanabe, S. Awaji, K. Koyama, G. Nishijima, K. Togano
.
A cryocooler-cooled 19 T superconducting magnet with 52 mm room temperature bore
.
IEEE Trans. Appl. Superc.14
393
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396
2004A cryocooler-cooled 19 T superconducting magnet with 52 mm room temperature boreReviewed
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K. Watanabe, S. Awaji, G. Nishijima, K. Takahashi, K. Koyama, M. Motokawa, and N. Kobayashi
.
Magnet technology and materials research at the High-Field Laboratory for Superconducting Materials
.
Physica B346-347
618
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622
2004Magnet technology and materials research at the High-Field Laboratory for Superconducting MaterialsReviewed
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K. Takahashi, C. Umeki, I. Mogi, K. Koyama, S. Awaji, M. Motokawa, and K. Watababe
.
Magnetic orientation of paraffin in a magnetic levitation furnace
.
Physica B346-347
277
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281
2004Magnetic orientation of paraffin in a magnetic levitation furnaceReviewed
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H. Kato, T. Miyazaki, M. Sagawa and K. Koyama
.
Coercivity enhancements by high-magnetic-field annealing in sintered Nd-Fe-B magnets
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Appl. Phys. Lett.84
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2004Coercivity enhancements by high-magnetic-field annealing in sintered Nd-Fe-B magnetsReviewed
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K. Irisawa, A. Fujita, K. Fukamichi, M. Yamada, H. Mitamura, T. Goto and K. Koyama
.
Transition between antiferromagnetic and ferromagnetic states in itinerant-electron La(FexAl1-x)13 compounds
.
Phys. Rev. B70
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2004Transition between antiferromagnetic and ferromagnetic states in itinerant-electron La(FexAl1-x)13 compoundsReviewed
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K. Koyama, M. Sakai, T. Kanomata and K. Watanabe
.
Field-induced martensitic transformation in new ferromagnetic shape memory compound Mn1.07Co0.92Ge
.
Jpn. J. Appl. Phys.43
8036
-
8039
2004Field-induced martensitic transformation in new ferromagnetic shape memory compound Mn1.07Co0.92Ge Reviewed
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D. Kikuchi, T. Kanomata, Y. Yamaguchi, H. Nishihara, K. Koyama, and K. Watanabe
.
Magnetic properties of ferromagnetic shape memory alloys Ni2Mn1-xFexGa
.
J. Alloys and Compounds383
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188
2004Magnetic properties of ferromagnetic shape memory alloys Ni2Mn1-xFexGaReviewed
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Y. Makihara, K. Koyama, K. Fukushima, K. Watanabe, and H. Fujii
.
X-ray diffraction study on Ce(Fe1-xCox)2 in high field at low temperature
.
J. Magn. Magn. Matter.272-276
608
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610
2004X-ray diffraction study on Ce(Fe1-xCox)2 in high field at low temperatureReviewed
-
K. Koyama, K. Fukushima, Y. Makihara, H. Fujii, and K. Watanabe
.
X-ray diffraction study on the psudobinary compound Ce(Fe0.9Co0.1)2 in high magnetic fields
.
J. Phys. Soc. Jpn.73
676
-
680
2004X-ray diffraction study on the psudobinary compound Ce(Fe0.9Co0.1)2 in high magnetic fieldsReviewed
-
F. Ishikawa, K. Koyama, K. Watanabe, and H. Wada,
.
X-ray diffraction study of the structural phase transition in MnAs under high magnetic fields
.
Physica B346-347
408
-
412
2004X-ray diffraction study of the structural phase transition in MnAs under high magnetic fieldsReviewed
-
K. Koyama, K. Fukushima, M. Yamada, T. Goto, Y. Makihara, H. Fujii, and K. Watanabe
.
High field x-ray diffraction and high pressure magnetization measurements of the pseudobinary compound Ce(Fe0.9Co0.1)2
.
Physica B346-347
187
-
190
2004High field x-ray diffraction and high pressure magnetization measurements of the pseudobinary compound Ce(Fe0.9Co0.1)2Reviewed
-
F. Ishikawa, K. Koyama, K. Watanabe, T. Asano, and H. Wada
.
Structural transformation of MnAs1-xSbx under high magnetic fields
.
Mater. Trans.45
311
-
314
2004Structural transformation of MnAs1-xSbx under high magnetic fieldsReviewed
-
Y. Oshima, M. Kimata, K. Kishigi, H. Ohta, K. Koyama, M. Motokawa, H. Nishikawa, K. Kikuchi, and I. Ikemoto
.
Observation of high-order quasi-one-dimensional periodic orbit resonance in (DMET)2I3 and its Fermi surface
.
Physica B346-347
387
-
391
2004Observation of high-order quasi-one-dimensional periodic orbit resonance in (DMET)2I3 and its Fermi surfaceReviewed
-
M. Kimata, H. Ohta, K. Koyama, Y. Oshima, M. Motokawa, H.M. Yamamoto, R. Kato
.
Development of high field magneto-optical measurement system with a rotational cavity for the study of organic conductors
.
Int. J. Mod. Phys.18
3803
-
3806
2004Development of high field magneto-optical measurement system with a rotational cavity for the study of organic conductorsReviewed
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M. Yoshida, K. Koyama, M. Shirakawa, A. Ochiai, K. Watanabe, and M. Motokawa
.
Cyclotron resonance measurements of the high-quality single crystal GdSb
.
J. Magn. Magn. Matter.272-276
495
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2004Cyclotron resonance measurements of the high-quality single crystal GdSbReviewed
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H. Ohta, O. Okubo, K. Fukuoka, Y. Inagaki, T. Kunimoto, M. Kimata, K. Koyama, M. Motokawa and Z. Hiroi
.
Breather excitation observed by high-field ESR in one-dimensional antiferromagnet BaCu2(Si1-xGex)2O7 (x = 0.65)
.
J. Magn. Magn. Matter272-276
929
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930
2004Breather excitation observed by high-field ESR in one-dimensional antiferromagnet BaCu2(Si1-xGex)2O7 (x = 0.65)Reviewed
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K. Koyama, T. Tomimatsu, M. Yoshida, D.X. Li, and M. Motokawa
.
ESR measurements of GdBi
.
Physica B346-347
155
-
159
2004ESR measurements of GdBiReviewed
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T. Sakon, K. Koyama, M. Motokawa, Y. Ajiro, and B. Barbara, "ESR experiments of molecular magnet V15 at ultra-low temperatures
.
ESR experiments of molecular magnet V15 at ultra-low temperatures
.
Physica B346-347
206
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210
2004ESR experiments of molecular magnet V15 at ultra-low temperaturesReviewed
-
Fumihiro Ishikawa, Keiichi Koyama, Kazuo Watanabe, Tetsuya Asano, Hirofumi Wada
.
Structural Transformation of MnAs1-xSbx under High Magnetic Fields
.
Materials Transactions45
(
2
)
311
-
314
2004Reviewed
-
H Ohta, M Kimata, K Koyama, Y Oshima, M Motokava, H Nishikawa, K Kikuchi, Ikemoto, I
.
Millimeter wave magneto-optical measurement of organic conductors using a rotational cavity
.
CONFERENCE DIGEST OF THE 2004 JOINT 29TH INTERNATIONAL CONFERENCE ON INFRARED AND MILLIMETER WAVES AND 12TH INTERNATIONAL CONFERENCE ON TERAHERTZ ELECTRONICS
379
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380
2004
-
M Yoshida, K Koyama, M Motokawa
.
Cyclotron resonance experiments on rare-earth monopnictides
.
JOURNAL OF PHYSICS-CONDENSED MATTER15
(
28
)
S2119
-
S2122
2003.7
-
Keiichi Koyama, Makoto Yoshida, Dexin Li, Mitsuhiro Motokawa
.
Electron Spin Resonance of GdX (X=P, As, Sb and Bi)
.
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN72
2003.6Electron Spin Resonance of GdX (X=P, As, Sb and Bi)Reviewed
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T Sakon, K Koyama, M Motokawa, H Nojiri, T Asano, Y Ajiro
.
Electron spin resonance measurements at ultralow temperatures
.
PHYSICA B-CONDENSED MATTER329
1629
-
1631
2003.5
-
T Suzuki, H Matsui, H Tsuchiya, E Negishi, K Koyama, N Toyota
.
Antiferromagnetic resonance in lambda-(BEDT-TSF)(2)FeCl4
.
SYNTHETIC METALS135
(
1-3
)
567
-
568
2003.4
-
Y Oshima, H Ohta, K Koyama, M Motokawa, H Nishikawa, K Kikuchi, Ikemoto, I
.
Magnetooptical measurements of quasi-one-dimensional conductor (DMET)(2)I-3
.
SYNTHETIC METALS135
(
1-3
)
531
-
532
2003.4
-
H Ohta, Y Oshima, Y Inagaki, S Okubo, M Kimata, M Motokawa, T Mori
.
Magneto-optical measurements of beta-(BEDT-TTF)(2)AuI2
.
SYNTHETIC METALS135
(
1-3
)
527
-
528
2003.4
-
Tsutomu Mashimo, Xinsheng Huang, Xu Fan, Keiichi Koyama, Mitsuhiro Motokawa
.
Erratum: Slater-Pauling curve of Fe-Cu solid solution alloys (Physical Review B - Condensed Matter and Materials Physics (2002) 66 (132407))
.
Physical Review B - Condensed Matter and Materials Physics67
999021
2003.3
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K Koyama, H Sasaki, T Kanomata, K Watanabe, M Motokawa
.
Magnetization measurements of weak itinerant electron ferromagnet Ni-Pt alloy
.
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN72
(
3
)
767
-
768
2003.3
-
T Suzuki, H Matsui, H Tsuchiya, E Negishi, K Koyama, N Toyota
.
Antiferromagnetic resonance in lambda-(BEDT-TSF)(2)FeCl4
.
PHYSICAL REVIEW B67
(
2
)
2003.1Antiferromagnetic resonance in lambda-(BEDT-TSF)(2)FeCl4Reviewed
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K. Koyama, H. Sasaki, T. Kanomata, K. Watanabe and M. Motokawa
.
Magnetic properties of weak itinerant ferromagnet Ni-Pt alloy
.
Physica B319-333
1121
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1122
2003Magnetic properties of weak itinerant ferromagnet Ni-Pt alloyReviewed
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H. Wada, H. Yoshida, T. Goto, K. Koyama and K. Watanabe
.
Novel field-induced magnetic transitions of GdMn2Ge2
.
J. Phys. Soc. Jpn72
3197
-
3203
2003Novel field-induced magnetic transitions of GdMn2Ge2Reviewed
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K. Koyama, H. Sasaki, T. Kanomata, K. Watanabe and M. Motokawa
.
Magnetization measurements of weak itinerant ferromagnet Ni-Pt alloy
.
J. Phys. Soc. Jpn72
767
-
768
2003Magnetization measurements of weak itinerant ferromagnet Ni-Pt alloyReviewed
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高橋弘紀、梅木千巧、茂木巌、淡路智、小山佳一、本河光博、渡辺和雄
.
磁気浮上状態で溶融凝固したパラフィンの配向効果
.
日本応用磁気学会誌27
1125
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1129
2003磁気浮上状態で溶融凝固したパラフィンの配向効果Reviewed
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F. Ishikawa, K. Koyama, K. Watanabe, and H. Wada
.
Field induced structural transformation in MnAs
.
Jpn. J. Appl. Phys.42
L918
-
L920
2003Field induced structural transformation in MnAsReviewed
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T. Tomimatsu, K. Koyama, M. Yoshida, D.X. Li and M. Motokawa
.
Observation of antiferromagnetic resonance affected by hyperfine interaction in GdBi
.
Phys. Rev. B67
14406
2003Observation of antiferromagnetic resonance affected by hyperfine interaction in GdBiReviewed
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K. Koyama, M. Yoshida, D.X. Li and M. Motokawa
.
Electron spin resonance of GdX (X=P, As, Sb and Bi)
.
J. Phys. Soc. Jpn. Suppl. B.72
145
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150
2003Electron spin resonance of GdX (X=P, As, Sb and Bi)Reviewed
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T. Sakon, H. Nojiri, K. Koyama, T. Asano, Y. Ajiro and M. Motokawa
.
ESR measurements at ultra-low temperatures using a dilution refrigerator
.
J. Phys. Soc. Jpn. Suppl. B72
140
-
144
2003ESR measurements at ultra-low temperatures using a dilution refrigeratorReviewed
-
H. Ohta, Y. Oshima, Y. Inagaki, S. Okubo, M.Kimata, K. Koyama, M. Motokawa and T. Mori
.
Magneto-optical measurements of β-(BEDT-TTF)2AuI2
.
Synthetic Metals135-136
527
-
528
2003Magneto-optical measurements of β-(BEDT-TTF)2AuI2Reviewed
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Y. Oshima, M. Kimata, K. Kishigi. H. Ohta, K. Koyama, M. Motokawa, H. Nishikawa, K. Kikuchi and I. Ikemoto
.
Fermi surface study of quasi-one-dimensional metals using magneto-optical techniques
.
Phys. Rev. B68
54526
2003Fermi surface study of quasi-one-dimensional metals using magneto-optical techniquesReviewed
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T. Suzuki, H. Matsui, H. Tsuchiya, E. Negishi, K. Koyama, and N. Toyota
.
Antiferromagnetic resonance in λ-(BEDT-TSF)2FeCl4
.
Synthetic Metals135-136
567
-
568
2003Antiferromagnetic resonance in λ-(BEDT-TSF)2FeCl4Reviewed
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M. Yoshida, K. Koyama and M. Motokawa
.
Cyclotron resonance experiments in rare-earth monopnictides
.
J. Phys.: Condenced Matter15
S2119
-
S2122
2003Cyclotron resonance experiments in rare-earth monopnictidesReviewed
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T. Sakon, K. Koyama, M. Motokawa, H. Nojiri, T. Asano, Y. Ajiro
.
Electron spin resonance measurements at ultralow temperature
.
Physica B329
1629
-
1631
2003Electron spin resonance measurements at ultralow temperatureReviewed
-
M. Yoshida, K. Koyama, T. Tomimatsu, M. Shirakawa, A. Ochiai and M. Motokawa
.
Observation of cyclotron resonance in CeSb
.
Physica B329-333
557
-
558
2003Observation of cyclotron resonance in CeSbReviewed
-
M. Yoshida, K. Koyama, T. Tomimatsu, M. Shirakawa, A. Ochiai and M. Motokawa
.
Doppler-shifted cyclotron resonance with Alfven waves in LaSb
.
Physica B329-333
1092
-
1093
2003Doppler-shifted cyclotron resonance with Alfven waves in LaSbReviewed
-
M. Yoshida, K. Koyama, M. Shirakawa, A. Ochiai, K. Watanabe, and M. Motokawa
.
Cyclotron resonance and magnetic resonance in GdSb
.
J. Phys. Soc. Jpn.73
1763
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1767
2003Cyclotron resonance and magnetic resonance in GdSbReviewed
-
Y. Oshima, H. Ohta, K. Koyama, M. Motokawa, H.M. Yamamoto, R. Kato, M. Tamura, Y. Nishio and K. Kajita
.
Fermi surface study of quasi-two dimensional organic conductors by magnetooptical measurements
.
J. Phys. Soc. Jpn72
143
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148
2003Fermi surface study of quasi-two dimensional organic conductors by magnetooptical measurementsReviewed
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Y. Oshima, H. Ohta, K. Koyama, M. Motokawa, H. Nishikawa, K. Kikuchi and I. Ikemoto
.
Magnetooptical measurements of quasi-one-dimensional conductor (DMET)2I3
.
Synthetic Metals135-136
531
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532
2003Magnetooptical measurements of quasi-one-dimensional conductor (DMET)2I3Reviewed
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Y. Oshima, H. Ohta, H.M. Yamamoto, R. Kato, K. Koyama, and M. Motokawa
.
Magnetooptical measurements of BEDT-TTF salts containing supramolecular assemblies
.
Synthetic Metals133-134
453
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454
2003Magnetooptical measurements of BEDT-TTF salts containing supramolecular assembliesReviewed
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M. Yoshida, K. Koyama, P.C. Canfield, C. Cunningham, S. Nimori, K. Watanabe and M. Motokawa
.
Cyclotron resonance in PrSb
.
J. Phys. Soc. Jpn.72
705
-
708
2003Cyclotron resonance in PrSbReviewed
-
T. Suzuki, H. Matsui, H. Tsuchiya, E. Negishi, K. Koyama, and N. Toyota,
.
Antiferromagnetic resonance in λ-(BEDT-TSF)2FeCl4
.
Phys. Rev.B67
020408(R)
2003Antiferromagnetic resonance in λ-(BEDT-TSF)2FeCl4Reviewed
-
N. Toyota, T. Suzuki, H. Matsui, H. Tsuchiya, E. Negishi, K. Koyama
.
Antiferromagnetic resonance in (formula presented)
.
Physical Review B - Condensed Matter and Materials Physics67
(
2
)
2003
-
Keiichi Koyama, Makoto Yoshida, Dexin Li, Mitsuhiro Motokawa
.
Electron spin resonance of GdX (X=P, As, Sb and Bi)
.
Journal of the Physical Society of Japan72
145
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150
2003
-
H Fujii, Sasaki, I, K Koyama
.
Interstitial alloys as hard magnetic materials
.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS242
59
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65
2002.4
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T Sakon, K Koyama, M Motokawa
.
Electron spin resonance experiments at ultralow temperatures by means of a dilution refrigerator
.
REVIEW OF SCIENTIFIC INSTRUMENTS73
(
3
)
1242
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1246
2002.3
-
K. Koyama, T. Goto, T. Kanomata and R. Note
.
Magnetization measurement of MnSi just above the critical pressure
.
Physica B312-313
485
-
486
2002Magnetization measurement of MnSi just above the critical pressureReviewed
-
T. Fujiwara, H. Fujii, K. Koyama and M. Motokawa
.
Novel magnetism on single crystalline YbMn2Ge2
.
Physica B312-313
864
-
866
2002Novel magnetism on single crystalline YbMn2Ge2Reviewed
-
Kanomata, T. Narita, N. Suzuki, K. Sato, T. Harada, N. Oogawara, K. Koyama and M. Motokawa
.
Electrical properties of the transition metal compound MnRhP
.
J. Alloys and Compounds334
68
-
71
2002Electrical properties of the transition metal compound MnRhPReviewed
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T. Mashimo, X. Huang, X. Fan, K. Koyama and M. Motokawa
.
Slater-Pauling curve of Fe-Cu solid solution alloys
.
Phys. Rev. B66
132407
2002Slater-Pauling curve of Fe-Cu solid solution alloysReviewed
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H. Fujii, I. Sasaki and K. Koyama
.
Interstitial alloy as hard magnetic materials
.
J. Magn. Magn. Mater. 242-245
59
-
65
2002Interstitial alloy as hard magnetic materialsReviewed
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T. Sakon, K. Koyama and M. Motokawa
.
Electron spin resonance experiments at ultra-low temperature by means of a dilution refrigerator
.
Rev. Sci. Instrum.73
1242
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1246
2002Electron spin resonance experiments at ultra-low temperature by means of a dilution refrigeratorReviewed
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M. Yoshida, K. Koyama, T. Tomimatsu, M. Shirakawa, A. Ochiai and M. Motokawa
.
Observation of cyclotron resonance on LaBi
.
Physica B322
306
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307
2002Observation of cyclotron resonance on LaBiReviewed
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M. Yoshida, K. Koyama, T. Tomimatsu, M. Shirakawa, A. Ochiai and M. Motokawa
.
The observation of cyclotron resonance in LaSb
.
Physica B312-313
684
-
685
2002The observation of cyclotron resonance in LaSbReviewed
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T. Tomimatsu, K. Koyama, M. Yoshida, D.X. Li and M. Motokawa
.
Magnetic resonance of GdBi
.
Physica B312-313
682
-
683
2002Magnetic resonance of GdBiReviewed
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K. Koyama,T. Tomimatsu, M. Yoshida, D.X. Li and M. Motokawa
.
Observation of cyclotron resonance on GdSb
.
Physica B312-313
680
-
681
2002Observation of cyclotron resonance on GdSbReviewed
-
K. Koyama, M. Yoshida, T. Tomimatsu, T. Sakon, D.X.. Li, M. Shirakawa, A. Ochiai and M. Motokawa
.
Observation of cyclotron resonance in rare-earth monopnictides by millimeter microwave region
.
J. Phys. and Chem. of Solids.63
1227
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1230
2002Observation of cyclotron resonance in rare-earth monopnictides by millimeter microwave regionReviewed
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M. Yoshida, K. Koyama, M. Shirakawa, A. Ochiai, K. Watanabe and M. Motokawa
.
Cyclotron resonance in CeSb
.
J. Phys. Soc. Jpn.71
2847
-
2850
2002Cyclotron resonance in CeSbReviewed
-
Y. Oshima, H. Ohta, K. Koyama, M. Motokawa, H.M. Yamamoto and R. Kato
.
Observation on high-order harmonic resonance in magnetooptical measurements of (BEDT-TTF)2Br(DIA)
.
J. Phys. Soc. Jpn. 71
1031
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1034
2002Observation on high-order harmonic resonance in magnetooptical measurements of (BEDT-TTF)2Br(DIA)Reviewed
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M. Yoshida, K. Koyama, T. Tomimatsu, M. Shirakawa,A. Ochiai and M. Motokawa
.
Determination of cyclotron effective masses on LaSb
.
J. Phys. Soc. Jpn.71
1752
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1756
2002Determination of cyclotron effective masses on LaSbReviewed
-
M. Yoshida, K. Koyama, M. Shirakawa, A. Ochiai, K. Watanabe and M. Motokawa
.
Observation of Doppler-shifted cyclotron resonance in LaSb
.
Phys. Rev. B66
233107
2002Observation of Doppler-shifted cyclotron resonance in LaSbReviewed
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M. Motokawa, M. Yoshida, K. Koyama
.
Nonlinear cyclotron resonance of rare-earth semimetals
.
Conference Digest - 27th International Conference on Infrared and Millimeter Waves, IRMMW 2002
Pl11
-
Pl12
2002
-
Keiichi Koyama, Makoto Yoshida, Takahiro Tomimatsu, Takuo Sakon, Dexin Li, Makoto Shirakawa, Akira Ochiai, Mitsuhiro Motokawa
.
Observation of cyclotron resonance in rare-earth monopnictides microwave region
.
Journal of Physics and Chemistry of Solids63
(
6-8
)
1227
-
1230
2002
-
T Sakon, H Nojiri, K Koyama, T Asano, Y Ajiro, M Motokawa
.
Electron spin resonance study of Cu benzoate using a He-3-He-4 dilution refrigerator
.
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN70
(
8
)
2259
-
2262
2001.8
-
H Kato, M Ishizone, T Miyazaki, K Koyama, H Nojiri, M Motokawa
.
High-frequency ferromagnetic resonance in Nd2Fe14B/alpha-Fe nanocomposite films
.
IEEE TRANSACTIONS ON MAGNETICS37
(
4
)
2567
-
2569
2001.7
-
Y Oshima, H Ohta, S Okubo, K Koyama, M Motokawa, M Tamura, Y Nishio, K Kajita
.
Fermi surface study of theta-(BEDT-TTF)(2)I-3 by cyclotron resonance measurements
.
SYNTHETIC METALS120
(
1-3
)
853
-
854
2001.3
-
K Koyama, H Fujii, T Goto, H Fukuda, Y Janssen
.
Magnetic phase transitions of Ce2Fe17 under high pressures and high magnetic fields
.
PHYSICA B294
168
-
171
2001.1
-
K. Koyama, H. Fujii, T. Goto, H. Fukuda and Y. Janssen,
.
Magnetic phase transitions of Ce2Fe17 under high pressure and high magnetic fields
.
Physica B294-295
168
-
171
2001Magnetic phase transitions of Ce2Fe17 under high pressure and high magnetic fieldsReviewed
-
T. Kanomata, T. Sasaki, T. Hoshi, T. Narita, T. Harada, H. Nishihara, T. Yoshida, R. Note, K. Koyama, H. Nojiri, T. Kaneko and M. Motokawa
.
Magnetic and electrical properties of Fe2+xV1-xAl
.
J. Alloys and Compounds317-318
390
-
394
2001Magnetic and electrical properties of Fe2+xV1-xAlReviewed
-
K. Koyama, T. Tomimatsu, M. Yoshida, D.X. Li and M. Motokawa
.
Cyclotron resonance of GdSb
.
J. Phys. Soc. Jpn.70
2371
-
2375
2001Cyclotron resonance of GdSbReviewed
-
M. Yoshida, K. Koyama, T. Tomimatsu, M. Shirakawa, A. Ochiai and M. Motokawa
.
Cyclotron resonance of LaBi
.
J. Phys. Soc. Jpn.70
2078
-
2081
2001Cyclotron resonance of LaBiReviewed
-
T. Sakon, H. Nojiri, K. Koyama, T. Asano, Y. Ajiro and M. Motokawa
.
Electron spin resonance study of Cu Benzoate using 3He-4He dilution refrigerator
.
J. Phys. Soc. Jpn.70
2259
-
2262
2001Electron spin resonance study of Cu Benzoate using 3He-4He dilution refrigeratorReviewed
-
K. Koyama, M. Yoshida, D.X. Li and M. Motokawa
.
Magnetic resonance of GdP
.
J. Phys. Soc. Jpn.70
2774
-
2777
2001Magnetic resonance of GdPReviewed
-
K. Koyama, M. Yoshida, T. Sakon, H. Nojiri, D.X. Li, T. Suzuki and M. Motokawa
.
ESR and CR measurements of Gd monopnictides
.
Physica B294-265
156
-
159
2001ESR and CR measurements of Gd monopnictidesReviewed
-
M. Yoshida, K. Koyama, H. Hiraga, Y. Endoh and M. Motokawa
.
High field ESR measurements of CoS2
.
Physica B294-295
145
-
148
2001High field ESR measurements of CoS2Reviewed
-
Y. Oshima, H. Ohta, S. Okubo, K. Koyama, M. Motokawa, M. Tamura, Y. Nishio and K. Kajita
.
High-field magnetooptical measurements of BEDT-TTF salts
.
Physica B294-295
431
-
434
2001High-field magnetooptical measurements of BEDT-TTF saltsReviewed
-
Y. Oshima, H. Ohta, S. Okubo, K. Koyama, M. Motokawa, M. Tamura, Y. Nishio and K. Kajita,
.
Fermi surface study of θ-(BEDT-TTF)2I3 by cyclotron resonance measurements
.
Synth. Metals. 120
853
-
854
2001Fermi surface study of θ-(BEDT-TTF)2I3 by cyclotron resonance measurementsReviewed
-
H. Ohta, Y. Oshima, T. Sakurai, S. Okubo, T. Tanaka, K. Koyama, M. Motokawa, H. Kikuchi, H. Nagasawa, J.P. Boucher
.
Observation of direct transition in S=1/2 quantum spin system Cu2(C5N12N2)2Cl4 by high field ESR
.
J. Magn. Magn. Mater. 226-230
439
-
440
2001Observation of direct transition in S=1/2 quantum spin system Cu2(C5N12N2)2Cl4 by high field ESRReviewed
-
H. Kato, M. Ishizone, T. Miyazaki, K. Koyama, H. Nojiri and M. Motokawa
.
High-frequency ferromagnetic resonance in Nd2Fe14B/α-Fe nanocomposite films
.
IEEE Trans. Magn.37
2567
-
2569
2001High-frequency ferromagnetic resonance in Nd2Fe14B/α-Fe nanocomposite filmsReviewed
-
加藤宏明、石曽根昌彦、宮崎照宣、小山佳一、野尻浩之、本河光博
.
強磁性共鳴によるナノコンポジット磁石の交換結合の評価
.
日本応用磁気学会誌25
675
-
678
2001強磁性共鳴によるナノコンポジット磁石の交換結合の評価Reviewed
-
K. Koyama, T. Sakon, H. Nojiri and M. Motokawa
.
Observation of new ESR mode at ultra low temperatures and CR of RE compounds by VNA
.
proceedings for 26th IRMMW (Toulouse 2001)
1
-
6
2001Observation of new ESR mode at ultra low temperatures and CR of RE compounds by VNAReviewed
-
Keiichi Koyama, Hironobu Fujii
.
Nitrogen gas-solid reaction process and basic magnetism of the interstitially modified rare-earth transition-metal nitrides and
.
Physical Review B - Condensed Matter and Materials Physics61
9475
-
9493
2000.1
-
K. Koyama, T. Goto, T. Kanomata and R. Note
.
Observation of an itinerant metamagnetic transition in MnSi under high pressure
.
Phys. Rev. B62
986
-
991
2000Observation of an itinerant metamagnetic transition in MnSi under high pressureReviewed
-
K. Koyama and H. Fujii
.
Nitrogen gas-solid process and basic magnetism of the interstitially modified rare-earth 3d transition-metal nitrides R2Fe17N3 (R=Y, Ce, Nd, Sm) and Y2Co17N3
.
Phys. Rev. B61
9475
-
9493
2000Nitrogen gas-solid process and basic magnetism of the interstitially modified rare-earth 3d transition-metal nitrides R2Fe17N3 (R=Y, Ce, Nd, Sm) and Y2Co17N3Reviewed
-
K. Koyama, M. Yoshida, H. Nojiri, T. Sakon, M. Motokawa, D.X. Li and T. Suzuki
.
Magnetic resonance of GdAs
.
Physica B281-282
456
-
457
2000Magnetic resonance of GdAsReviewed
-
K. Koyama, M. Yoshida, T. Sakon, D.X. Li, T. Suzuki and M. Motokawa
.
Cyclotron resonance of GdAs
.
J. Phys. Soc. Jpn69
3425
-
3428
2000Cyclotron resonance of GdAsReviewed
-
M. Yoshida, K. Koyama, T. Sakon, A. Ochiai and M. Motokawa
.
Cyclotron resonance of LaSb
.
J. Phys. Soc. Jpn.69
3629
-
3632
2000Cyclotron resonance of LaSbReviewed
-
K. Koyama, M. Yoshida, H. Nojiri, T. Sakon, D.X. Li, T. Suzuki and M. Motokawa
.
Antiferromagnetic resonance and magnetic structure of GdAs
.
J. Phys. Soc. Jpn.69
1521
-
1525
2000Antiferromagnetic resonance and magnetic structure of GdAsReviewed
-
H. Kato, M. Ishizone, T. Miyazaki, K. Koyama, H. Nojiri and M. Motokawa
.
Fabrication and magnetic properties of nanophase dispersed Nd2Fe14B / α-Fe and Sm2Fe17N3 / α-Fe films with crystallite orientation of hard phases
.
proceedings for Sixteenth International Workshop on Rare-Earth Magnets (Sendai 2000)
547
-
549
2000Fabrication and magnetic properties of nanophase dispersed Nd2Fe14B / α-Fe and Sm2Fe17N3 / α-Fe films with crystallite orientation of hard phasesReviewed
-
T. Sakon, H. Nojiri, K. Koyama, T. Asano, Y. Ajiro and M. Motokawa
.
ESR at ultra-low temperatures and observation of new mode in Cu-Benzoate
.
proceedings for EPR in the 21st century (Kobe 2000)
807
-
812
2000ESR at ultra-low temperatures and observation of new mode in Cu-BenzoateReviewed
-
Sakon Takuo, Nakanishi Yoshiki, Yoshida Makoto, Koyama Keiichi, Takahashi Fumihiko, Nojiri Hiroyuki, Li De Xin, Suzuki Takashi, Motokawa Mitsuhiro
.
dHvA Effect and Magnetic Resonance of GdAs
.
JJAP Series: Physics of Strongly Correlated Electron Systems11
135
-
137
1999.12
-
UMEO Kazunori, TAKABATAKE Toshiro, PIETRUS Thomas, LOHNEYSEN Hilbert von, OHMOTO Hirohisa, KOYAMA Keiichi, HANE Shogo, GOTO Tsuneaki
.
Pressure-Induced Quantum Phase Transition in Ce_7Ni_3
.
JJAP series11
154
-
156
1999.2Pressure-Induced Quantum Phase Transition in Ce_7Ni_3
-
H. Fujii, K. Koyama, I. Sasaki, S. Mitsudo and M. Motokawa
.
Giant magnetic anisotropy in Sm2Fe17 induced by nitrogenation
.
J. Magn. Soc. Jpn.23
465
-
467
1999.1Giant magnetic anisotropy in Sm2Fe17 induced by nitrogenationReviewed
-
T. Sakon, Y. Nakanishi, M. Yoshida, K. Koyama, F. Takahashi, H. Nojiri, D. Li, T. Suzuki and M. Motokawa
.
dHvA effect and magnetic resonance of GdAs
.
Physics of strongly correlated electron systems, ed. T. Komatsubara, H. Fujii, Y. Onuki and H. Shiba (Japanese Journal of Applied Physics, Tokyo)
135
-
137
1999.1dHvA effect and magnetic resonance of GdAs
-
K. Koyama, T. Goto, H. Fujii, H. Fukuda and Y. Janssen
.
Magnetization measurements of Ce2Fe17 under high pressure and high magnetic fields
.
J. Magn. Soc. Jpn.23
471
-
473
1999Magnetization measurements of Ce2Fe17 under high pressure and high magnetic fieldsReviewed
-
N. Suzuki, T. Kanomata, R. Konno, T. Kaneko, H. Yamauchi, K. Koyama, H. Nojiri, Y. Yamaguchi and M. Motokawa
.
Magnetic Phase diagram of CrTe1-xSbx (0.0 ?x ?1.0)
.
J. Alloys and Compounds290
25
-
29
1999Magnetic Phase diagram of CrTe1-xSbx (0.0 ?x ?1.0)Reviewed
-
K. Koyama, T. Goto, T. Kanomata and R. Note
.
Precise magnetization measurements of single-crystalline FeSi under high pressure
.
J. Phys. Soc. Jpn. 68
1693
-
1698
1999Precise magnetization measurements of single-crystalline FeSi under high pressureReviewed
-
K. Koyama, H. Fujii, Y. Makihara, T. Kajitani and Morii
.
Thermal expansion measurements on rhombohedral Y2Fe17 and Y2Fe17N3.1
.
J. Magn. Soc. Jpn.23
468
-
470
1999Thermal expansion measurements on rhombohedral Y2Fe17 and Y2Fe17N3.1Reviewed
-
K. Umeo, T. Takabatake, T. Pietrus, H. B. Lohneysen, H. Ohmoto, K. Koyama, S. Hane and T. Goto
.
Pressure-induced quantum phase transition in Ce7Ni3
.
Physics of strongly correlated electron systems, ed. T. Komatsubara, H. Fujii, Y. Onuki and H. Shiba (Japanese Journal of Applied Physics, Tokyo)
154
-
156
1999Pressure-induced quantum phase transition in Ce7Ni3
-
N. Suzuki, T. Kanomata, R. Konno, T. Kaneko, H. Yamauchi, K. Koyama, H. Nojiri, Y. Yamaguchi, M. Motokawa
.
Magnetic phase diagram of CrTe1-xSbx (0.0≤x≤1.0)
.
Journal of Alloys and Compounds290
(
1-2
)
25
-
29
1999
-
KOYAMA K., FUJII H., MITSUDO S., MOTOKAWA M., KOUJIMA J., ANDOH Y., CANFIELD P.C.
.
Magnetic Anisotropy in Single Crystals of an Interstitially Modified Nitrogen Compound, Nd_2Fe_<17>N_3
.
Journal of the Magnetics Society of Japan22
(
4
)
345
-
348
1998.4Reviewed
-
T Kamimori, K Koyama, Y Mori, M Asano, K Kinoshita, J Mochimaru, K Konishi, H Tange
.
Preferential site occupation of M atoms and the Curie temperature in Y2Fe17-xMx (M = Al, Si, Ga)
.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS177
(
Pt.2
)
1119
-
1120
1998.1Reviewed
-
K. Koyama, S. Hane, K. Kamishima and T. Goto
.
Instrument for high resolution magnetization measurements at high pressures, high magnetic fields and low temperatures
.
Rev. Sci. Instrum.69
3009
-
3014
1998Instrument for high resolution magnetization measurements at high pressures, high magnetic fields and low temperaturesReviewed
-
T. Kamimori, K. Koyama, Y. Mori, M Asano, K. Kinoshita, J. Mochimaru, K. Konishi and H. Tange,
.
Preferential site occupation of N atoms and the Curie temperature in Y2Fe17-xMx (M=Al, Si, Ga)
.
J. Magn. Magn. Mater.177-181
1119
-
1120
1998Preferential site occupation of N atoms and the Curie temperature in Y2Fe17-xMx (M=Al, Si, Ga)Reviewed
-
K. Koyama, T. Goto, H. Fujii, N. Takeshita, N. Mori, H. Fukuda and Y. Janssen
.
Observation of new magnetic phases in Ce2Fe17 under high pressure and high magnetic fields
.
J. Phys. Soc. Jpn.67
1879
-
1882
1998Observation of new magnetic phases in Ce2Fe17 under high pressure and high magnetic fieldsReviewed
-
K. Umeo, T. Takabatake, H. Ohmoto, T. Pietrus, H. B. Lohneysen, K. Koyama, S. Hane and T. Goto
.
Low-temperature specific heat and magnetic susceptibility near the pressure-induced quantum phase transition in Ce7Ni3
.
Phys. Rev. B58
12095
-
12099
1998Low-temperature specific heat and magnetic susceptibility near the pressure-induced quantum phase transition in Ce7Ni3Reviewed
-
小山佳一、藤井博信、光藤誠太郎、本河光博、香嶋純、安藤由和、P.C. Canfield
.
窒素侵入型化合物Nd2Fe17N3 単結晶の磁気異方性
.
日本応用磁気学会誌22
345
-
348
1998窒素侵入型化合物Nd2Fe17N3 単結晶の磁気異方性Reviewed
-
K. Koyama, T. Kajitani, Y. Morii, H. Fujii, M. Akayama
.
Neutron powder diffraction of rhombohedral Y2Fe17 and Y2Fe17N3.1
.
Physical Review B55
(
17
)
11414
-
11421
1997.5Reviewed
-
K. Koyama, T. Kajitani, Y. Morii, H. Fujii and M. Akayama
.
Neutron powder diffraction of rhombohedral Y2Fe17 and Y2Fe17N3.1
.
Phys. Rev. B55
11414
-
11421
1997Neutron powder diffraction of rhombohedral Y2Fe17 and Y2Fe17N3.1Reviewed
-
K. Koyama, H. Fujii, S. Mitsudo, M. Motokawa, J. Koujima, Y. Andoh and P.C. Canfield
.
High-field magnetization on interstitially modified single crystals Nd2Fe17Z3 (Z=H and N)
.
Physica B237-238
548
-
550
1997High-field magnetization on interstitially modified single crystals Nd2Fe17Z3 (Z=H and N)Reviewed
-
H. Fujii, K. Koyama, K. Tatami, S. Mitsudo, M. Motokawa, T. Kajitani, Y. Morii and P.C. Canfield
.
Recent development of basic magnetism in interstitially-modified rare earth iron nitrides R2Fe17N3
.
Recent development of basic magnetism in interstitially-modified rare earth iron nitrides R2Fe17N3237-238
534
-
540
1997Recent development of basic magnetism in interstitially-modified rare earth iron nitrides R2Fe17N3Reviewed
-
K. Koyama, H. Fujii, S. Suzuki
.
Magnetic properties of interstitially modified compounds Sm3(Fe,M)29Zx (M Ti, V, Cr and Z H or N)
.
Journal of Magnetism and Magnetic Materials161
118
-
126
1996.8Magnetic properties of interstitially modified compounds Sm3(Fe,M)29Zx (M Ti, V, Cr and Z H or N)Reviewed
-
K. Koyama, H. Fujii, P.C. Canfield
.
Magnetocrystalline anisotropy of a Nd2Fe17 single crystal
.
Physica B: Condensed Matter226
(
4
)
363
-
369
1996.8Magnetocrystalline anisotropy of a Nd2Fe17 single crystalReviewed
-
H. Fujii, K. Tatami, K. Koyama
.
Nitrogenation process in Sm2Fe17 under various N2-gas pressures up to 6 MPa
.
Journal of Alloys and Compounds236
(
1-2
)
156
-
164
1996.4Nitrogenation process in Sm2Fe17 under various N2-gas pressures up to 6 MPaReviewed
-
K. Koyama, H. Fujii and S. Suzuki
.
Magnetic properties of interstitially modified compounds Sm3(Fe,M)29Zx (M=Ti, V, Cr and Z=H or N)
.
J. Magn. Magn. Mater.161
118
-
126
1996Magnetic properties of interstitially modified compounds Sm3(Fe,M)29Zx (M=Ti, V, Cr and Z=H or N)Reviewed
-
H. Fujii, K. Tatami and K. Koyama
.
Nitrogenation process in Sm2Fe17 under various pressures up to 6 MPa
.
J. Alloys and Compounds236
156
-
164
1996Nitrogenation process in Sm2Fe17 under various pressures up to 6 MPaReviewed
-
K. Koyama, H. Fujii and P.C. Canfield
.
Magnetocrystalline anisotropy of Nd2Fe17 single crystal
.
Physica B226
363
-
369
1996Magnetocrystalline anisotropy of Nd2Fe17 single crystalReviewed
-
K. Koyama, Y. Mori, M. Asano, T. Kamimori, H. Tange and M. Goto
.
Effect of nitrogenation on magnetism for Y2Fe17-x(Si,Al)x
.
J. Magn. Magn. Mater.140-144
969
-
970
1995Effect of nitrogenation on magnetism for Y2Fe17-x(Si,Al)xReviewed
-
T. Kamimori, K. Koyama and M. Goto
.
Magnetocrystalline anisotropy of Y2Fe17 with silicon and carbon
.
Nuclear Instruments and Methods in Physics Research B76
57
-
58
1993Magnetocrystalline anisotropy of Y2Fe17 with silicon and carbonReviewed