2011 Fiscal Year Final Research Report
Current-induced ferromagnetism and spin torque due to large spin Hall effect
| Project/Area Number |
22651055
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Single-year Grants |
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| Research Field |
Microdevices/Nanodevices
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| Research Institution | National Institute for Materials Science |
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Principal Investigator |
MITANI Seiji 独立行政法人物質・材料研究機構, 磁性材料ユニット, グループリーダー (20250813)
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| Co-Investigator(Renkei-kenkyūsha) |
KASAI Shinya 独立行政法人物質・材料研究機構, 磁性材料ユニット, 主任研究員 (20378855)
HAYASHI Masamitsu 独立行政法人物質・材料研究機構, 磁性材料ユニット, 主任研究員 (70517854)
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| Research Collaborator |
SUGAI Isamu 東北大学, 金属材料研究所, 大学院生
SEKI Takeshi 東北大学, 金属材料研究所, 助教
TAKANASHI Koki 東北大学, 金属材料研究所, 教授
KONDOU Kouta 独立行政法人物質・材料研究機構, 磁性材料ユニット, NIMSポスドク研究員
SUKEGAWA Hiroaki 独立行政法人物質・材料研究機構, 磁性材料ユニット, 研究員
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| Project Period (FY) |
2010 – 2011
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| Keywords | スピンホール効果 / スピン注入 / 強磁性 / スピントルク / 磁気素子 |
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| Research Abstract |
Pure spin current can be generated from electric current through spin Hall effect in nonmagnetic materials, and therefore it is of particular interest in solid state physics. However, almost no functionality using spin Hall effect has been realized in the field of electronics. In this study, we have investigated control of magnetism and magnetization reversal using spin Hall effect. While our proposed device has been demonstrated by the other group in USA, some basic knowledge on possible functionalities of spin Hall effect has been obtained. In particular, it has been clarified that adding a second element is an effective way to enlarge spin Hall effect of materials.
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