Innovative multiple-bit information writing using local pure spin current injection
| Project/Area Number |
23651150
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Microdevices/Nanodevices
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| Research Institution | Kyushu University |
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Principal Investigator |
KIMURA Takashi 九州大学, 理学(系)研究科(研究院), 教授 (80360535)
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| Project Period (FY) |
2011 – 2013
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2013: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2012: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2011: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Keywords | 純スピン流 / 多値メモリ / 磁気記録 / スピン流 / ナノ磁性体 / 磁区構造 / スピントロニクス |
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| Research Abstract |
We have proposed an innovative way for writing multi-bit informations in a nano-sized magnetic dot and developed its elemental techniques. First, we have demonstrated that a multi vortex states can be stabilized in a nano-sized magnetic triangle. Secondly, we have developed a method for generating giant pure spin current by using multi-terminal spin injection. Finally, we have demonstrated a partial magnetization switching of the magnetic dot by pure spin current injection. By combining these techniques, a novel multi-bit information writing will be developed.
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Report
(4 results)
Research Products
(16 results)
