Fundamental research on spin-dependent functional devices based on half-metallic ferromagnet/semiconductor hybrid structures
| Project/Area Number |
21360140
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Electronic materials/Electric materials
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| Research Institution | Hokkaido University |
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Principal Investigator |
UEMURA Tetsuya 北海道大学, 大学院・情報科学研究科, 准教授 (20344476)
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| Co-Investigator(Kenkyū-buntansha) |
YAMAMOTO Masafumi 北海道大学, 大学院・情報科学研究科, 教授 (10322835)
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| Co-Investigator(Renkei-kenkyūsha) |
MATSUDA Ken-ichi 北海道大学, 大学院・情報科学研究科, 助教 (80360931)
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| Project Period (FY) |
2009 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
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| Budget Amount *help |
¥17,940,000 (Direct Cost: ¥13,800,000、Indirect Cost: ¥4,140,000)
Fiscal Year 2011: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2010: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2009: ¥10,400,000 (Direct Cost: ¥8,000,000、Indirect Cost: ¥2,400,000)
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| Keywords | スピントロニクス / スピン注入 / ホイスラー合金 / 半導体 / スピントランジスタ / スピン発光ダイオード / トンネル異方性磁気抵抗効果 / トンネル異方性磁気抵抗 |
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| Research Abstract |
The purpose of this research project was to develop fundamental technologies for creation of viable spintronic devices, in which electron spins are utilized as an additional degree of freedom for information and storage. For that purpose we demonstrated highly-efficient spin injection from halfmetallic ferromanet of Co-based Heusler alloy into GaAs and Si. Furthermore we clarified spin-dependent transport properties through the investigation of spin lifetime and interplay between electron spins and nuclear spins in the semiconductor channels.
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Report
(4 results)
Research Products
(117 results)
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[Journal Article] Magnetic dichroism in angle-resolved hard x-ray photoemission from buried layers2011
Author(s)
X.Kozina, G.H.Fecher, G.Stryganyuk, S.Ouardi, B.Balke, C.Felser, G.Schonhense, E.Ikenaga, T.Sugiyama, N.Kawamura, M.Suzuki, T.Taira, T.Uemura, M.Yamamoto, H.Sukegawa, W.H.Wang, K.Inomata, K.Kobayash
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Journal Title
Physical Review B
Volume: 84
Issue: 5
DOI
Related Report
Peer Reviewed
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[Presentation] Co_2MnSiを用いたGaAsへのスピン注入および動的核スピンの検出2011
Author(s)
秋保貴史, 原田雅亘, 植村哲也, 松田健一, 山本眞史
Organizer
The 16^<th> Symposium on the Physics and Application of Spin-Related Phenomena in Semiconductors (PASPS-16)
Place of Presentation
東京工業大学(東京都)
Year and Date
2011-11-29
Related Report
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[Presentation] 強磁性体/n-GaA・ヘテロ接合におけるトンネル特性のMgO層挿入効果2010
Author(s)
秋保貴史, 原田雅亘, 植村哲也, 松田健一, 山本眞史
Organizer
The 15^<th> Symposium on the Physics and Application of Spin-Related Phenomena in Semiconductors (PASPS-15)
Place of Presentation
筑波大学(つくば市)
Year and Date
2010-12-21
Related Report
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[Presentation] Effect of nonstoichiometry on saturation magnetization of Heusler alloy Co_2MnGe thin films", p.88(C-31), Jan.8-9, 2010(Presented on).2010
Author(s)
Guifang Li, T.Taira, S.Hirata, Y.Honda, K.-i.Matsuda, T.Uemura, M.Yamamoto
Organizer
The Japan Society of Applied Physics Hokkaido Chapter
Place of Presentation
Hokkaido University, Sapporo
Year and Date
2010-01-09
Related Report
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