2012 Fiscal Year Final Research Report
Control of Spin Current in Artificially Twisted Spin Structures
| Project/Area Number |
23760659
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Structural/Functional materials
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| Research Institution | Tohoku University |
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Principal Investigator |
SEKI Takeshi 東北大学, 金属材料研究所, 助教 (40579611)
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| Project Period (FY) |
2011 – 2012
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| Keywords | 金属人工格子 / 磁気構造 / スピン流 / スピンエレクトロニクス |
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| Research Abstract |
The understanding of interaction between “spin current" and “magnetization" is an essential issue for the development of spintronic devices. In this research project, bilayers consisting of hard magnetic L10-FePt and soft magnetic Permalloy (FeNi alloy) were prepared, and twisted spin structures were artificially formed in the bilayers. The magnetization dynamics of the bilayers were investigated, and the high efficient magnetization switching technique was developed using the spin wave mode in the bilayers. Also, the current-induced magnetization switching was successfully observed in the nanopillars with a twisted spin structure.
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