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K

Keiichi Koyama

kagoshima university

32H指数
430论文数
4.3K被引数
收录论文 65
发表时间
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Influence of preparation method on magnetic properties and martensitic transformations of ferromagnetic MnCoGe alloys制备方法对铁磁MnCoGe合金磁性能和马氏体相变的影响
errJournal of Magnetism and Magnetic Materials
IF3
err2026-02-01
err0
errOAAI
errTsunematsu, Taisei; Onoue, Masahira; Mitsui, Yoshifuru; Umetsu, Rie Y.; Koyama, Keiichi
err分享
err收藏
Magnetic-field-induced selective retardation of reaction in Mn/Ga diffusion couple
errJOURNAL OF ALLOYS AND COMPOUNDS
IF6.3
err2021-12-01
err6
errOAAI
errWatanabe, Yumi; Kobayashi, Ryota; Mitsui, Yoshifuru; Umetsu, Rie Y.; Koyama, Keiichi
err分享
err收藏
High magnetic field properties in Ru2-xFexCrSi with antiferromagnetic and spin-glass states
errPHYSICAL REVIEW B
IF3.7
err2021-03-19
err2
PREAI
errHiroi, Masahiko; Nishiinoue, Sora; Shigeta, Iduru; Ito, Masakazu; Koyama, Keiichi; Kondo, Akihiro; Kindo, Koichi; Watanabe, Isao; Fujii, Muneaki; Kimura, Shojiro; Manaka, Hirotaka; Terada, Norio
err分享
err收藏
Magnetic field-induced nitridation of Sm2Fe17
errJOURNAL OF ALLOYS AND COMPOUNDS
IF6.3
err2020-09-01
err10
PREAI
errOnoue, Masahira; Kobayashi, Ryota; Mitsui, Yoshifuru; Umetsu, Rie Y.; Uwatoko, Yoshiya; Koyama, Keiichi
err分享
err收藏
Magnetic and electrical properties of Heusler compounds Ru2Cr1-xXxSi (X = V, Ti)
errJOURNAL OF ALLOYS AND COMPOUNDS
IF6.3
err2017-02-01
err7
PREAI
errHiroi, Masahiko; Sano, Hiroaki; Tazoko, Tomoya; Shigeta, Iduru; Ito, Masakazu; Koyama, Keiichi; Manaka, Hirotaka; Terada, Norio; Fujii, Muneaki; Kondo, Akihiro; Kindo, Koichi
err分享
err收藏
High-field magnetization of Heusler compound Fe2Mn1-xVxSi
errPHYSICAL REVIEW B
IF3.7
err2017-01-11
err13
PREAI
errHiroi, Masahiko; Tazoko, Tomoya; Sano, Hiroaki; Shigeta, Iduru; Koyama, Keiichi; Kondo, Akihiro; Kindo, Koich; Manaka, Hirotaka; Terada, Norio
err分享
err收藏
Kinetic-arrest-induced phase coexistence and metastability in (Mn, Fe)2(P, Si)
errPHYSICAL REVIEW B
IF3.7
err2016-09-22
err26
errOAAI
errMiao, X. F.; Mitsui, Y.; Dugulan, A. Iulian; Caron, L.; Thang, N. V.; Manuel, P.; Koyama, K.; Takahashi, K.; van Dijk, N. H.; Bruck, E.
err分享
err收藏
X-ray diffraction measurements in high magnetic fields and at high temperatures在高磁场和高温下的x射线衍射测量
errSCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS
IF6.9
err2016-01-12
err10
errOAAI
errMitsui, Yoshifuru; Koyama, Keiichi; Watanabe, Kazuo
err分享
err收藏
Magnetic and structural phase transitions of MnBi under high magnetic fields
errSCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS
IF6.9
err2016-01-12
err23
errOAAI
errKoyama, Keiichi; Mitsui, Yoshifuru; Watanabe, Kazuo
err分享
err收藏
Nucleation control for fine nano crystallization of Fe-based amorphous alloy by high-magnetic-field annealing
errJOURNAL OF ALLOYS AND COMPOUNDS
IF6.3
err2015-07-01
err44
PREAI
errOnodera, Reisho; Kimura, Shojiro; Watanabe, Kazuo; Yokoyama, Yoshihiko; Makino, Akihiro; Koyama, Keiichi
err分享
err收藏
Fe-Fe3C binary phase diagram in high magnetic fields
errJOURNAL OF ALLOYS AND COMPOUNDS
IF6.3
err2015-05-01
err25
PREAI
errMitsui, Yoshifuru; Ikehara, Yuki; Takahashi, Kohki; Kimura, Shojiro; Miyamoto, Goro; Furuhara, Tadashi; Watanabe, Kazuo; Koyama, Keiichi
err分享
err收藏
Magnetic-field-induced enhancement for synthesizing ferromagnetic MnBi phase by solid-state reaction sintering
errJOURNAL OF ALLOYS AND COMPOUNDS
IF6.3
err2014-12-01
err36
PREAI
errMitsui, Yoshifuru; Umetsu, Rie Y.; Koyama, Keiichi; Watanabe, Kazuo
err分享
err收藏
Magnetic phase transitions in Er7Rh3 studied on single crystals
errJOURNAL OF ALLOYS AND COMPOUNDS
IF6.3
err2014-09-01
err1
PREAI
errTsutaoka, Takanori; Obata, Keisuke; Cheyvuth, Seng; Koyama, Keiichi
err分享
err收藏
Crystallization kinetics of high iron concentration amorphous alloys under high magnetic fields强磁场下高铁浓度非晶合金的晶化动力学
errJOURNAL OF ALLOYS AND COMPOUNDS
IF6.3
err2014-08-01
err31
PREAI
errOnodera, Reisho; Kimura, Shojiro; Watanabe, Kazuo; Yokoyama, Yoshihiko; Makino, Akihiro; Koyama, Keiichi
err分享
err收藏
Resistive switching behavior in Lu2O3 thin film for advanced flexible memory applications
errNANOSCALE RESEARCH LETTERS
IF4.1
err2014-01-03
err31
errOAAI
errMondal, Somnath; Her, Jim-Long; Koyama, Keiichi; Pan, Tung-Ming
err分享
err收藏
Site occupancy and magnetic moment of Fe in Ni2Mn0.3Fe0.7Ga alloy by neutron powder diffraction study通过中子粉末衍射研究Ni2Mn0.3Fe0.7Ga合金中Fe的位置占有率和磁矩
errJOURNAL OF ALLOYS AND COMPOUNDS
IF6.3
err2013-12-01
err6
PREAI
errUmetsu, R. Y.; Kikuchi, D.; Koyama, K.; Watanabe, K.; Yamaguchi, Y.; Kainuma, R.; Kanomata, T.
err分享
err收藏
Thermodynamic assessment for the Bi-Mn binary phase diagram in high magnetic fields
errJOURNAL OF ALLOYS AND COMPOUNDS
IF6.3
err2013-11-01
err23
PREAI
errMitsui, Yoshifuru; Oikawa, Katsunari; Koyama, Keiichi; Watanabe, Kazuo
err分享
err收藏
Direct measurement of large reversible magnetic-field-induced strain in Ni-Co-Mn-In metamagnetic shape memory alloys
errACTA MATERIALIA
IF9.3
err2012-12-01
err76
PREAI
errMonroe, J. A.; Karaman, I.; Basaran, B.; Ito, W.; Umetsu, R. Y.; Kainuma, R.; Koyama, K.; Chumlyakov, Y. I.
err分享
err收藏
A new type of FCT martensite phase in single-crystalline Fe3Pt Invar alloy单晶Fe3Pt因瓦合金中的新型FCT马氏体相
errJOURNAL OF ALLOYS AND COMPOUNDS
IF6.3
err2011-08-01
err9
PREAI
errYamamoto, Masataka; Sekida, Sayaka; Fukuda, Takashi; Kakeshita, Tomoyuki; Takahashi, Kohki; Koyama, Keiichi; Nojiri, Hiroyuki
err分享
err收藏
Effect of pressure on the magnetic, transport, and thermal-transport properties of the electron-doped manganite CaMn1-xSbxO3
errPHYSICAL REVIEW B
IF3.7
err2011-02-28
err37
errOAAI
errMurano, Yuh; Matsukawa, Michiaki; Ohuchi, Syuya; Kobayashi, Satoru; Nimori, Shigeki; Suryanarayanan, Ramanathan; Koyama, Keiichi; Kobayashi, Norio
err分享
err收藏

研究方向

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