Study of 3D local structures around magnetic elements in room temperature ferromagnetic semiconductors
| Project/Area Number |
25286040
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Partial Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Applied materials
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| Research Institution | Nagoya Institute of Technology (2016)
Tohoku University (2013-2015) |
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Principal Investigator |
Hayashi Koichi 名古屋工業大学, 工学(系)研究科(研究院), 教授 (20283632)
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| Co-Investigator(Kenkyū-buntansha) |
細川 伸也 熊本大学, 自然科学研究科, 教授 (30183601)
田中 義人 兵庫県立大学, その他の研究科, 教授 (80260222)
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| Co-Investigator(Renkei-kenkyūsha) |
Fukumura Tomoteru 東北大学, 大学院理学研究科, 教授 (90333880)
Uchitomi Naotaka 長岡技術科学大学, 大学院工学研究科, 教授 (20313562)
Akagi Kazuto 東北大学, WPI, 准教授 (50313119)
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| Project Period (FY) |
2013-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥18,850,000 (Direct Cost: ¥14,500,000、Indirect Cost: ¥4,350,000)
Fiscal Year 2015: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2014: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2013: ¥10,270,000 (Direct Cost: ¥7,900,000、Indirect Cost: ¥2,370,000)
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| Keywords | 蛍光Ｘ線ホログラフィー / 強磁性半導体 / 局所構造 / ３Ｄ原子イメージ / 希薄磁性半導体 / 磁性元素 / 亜酸化物 / 蛍光X線ホログラフィー / スピントロニクス |
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| Outline of Final Research Achievements |
To understand local structures around magnetic elements, we measured X-ray fluorescence holograms of Co:TiO2 thin film, Mn:ZnSnAs2 thin film and GeMnTe thin film. In Co:TiO2 thin film, we discovered suboxide clusters around Co. The crystal structure of ZnSnAs2 thin film was sphalerite-type, and the As sublattice was largely distorted. Moreover, the local structure around Ge in GeMnTe thin film, reflecting rhombohedral GeTe structure, had lower symmetry than that around Mn.
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Report
(5 results)
Research Products
(33 results)
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[Journal Article] Chemical and orbital fluctuations in Ba3CuSb2O92016
Author(s)
Y. Wakabayashi, D. Nakajima, Y. Ishiguro, K. Kimura, T. Kimura, S. Tsutsui, A. Q. R. Baron, K. Hayashi, N. Happo, S. Hosokawa, K. Ohwada, and S. Nakatsuji
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Journal Title
Physical Review B
Volume: 93
Issue: 24
Pages: 245117-245117
DOI
NAID
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Structural studies on TlInSe2 thermoelectric material by X-ray fluorescence holography, XAFS, and X-ray diffraction2015
Author(s)
Shinya Hosokawa, Kenji Kamimura, Hiroyuki Ikemoto, Naohisa Happo, Kojiro Mimura, Kouichi Hayashi, Kohki Takahashi, Kazuki Wakita, and Nazim Mamedov
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Journal Title
physica status solidi (b)
Volume: 252
Issue: 6
Pages: 1225-1229
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Local Structure Analysis of Incommensurate Phase in Ti-42Ni-8Fe(at.%) Alloy by X-ray Fluorescence Holography2015
Author(s)
W. Hu, K. Hayashi, T. Fukumura, K. Akagi, M. Tsukada, N. Happo, S. Hosokawa, K. Ohwada, M. Takahasi, M. Suzuki, M. Kawasaki
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Journal Title
Appl. Phys. Lett.
Volume: 106
Issue: 22
Pages: 222403-222403
DOI
Related Report
Peer Reviewed / Int'l Joint Research
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