| Project/Area Number |
15K13964
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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 |
Electron device/Electronic equipment
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| Research Institution | Tohoku University |
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Principal Investigator |
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| Project Period (FY) |
2015-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2016: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2015: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
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| Keywords | スピン・軌道相互作用 / スピン軌道トルク / 集積回路 / 3端子磁気メモリ素子 / スピンホール効果 / ３端子磁気メモリ素子 |
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| Outline of Final Research Achievements |
A new magnetization switching scheme, which is expected to be applied to high-performance and ultralow-power integrated circuits, was proposed. Also, demonstration of its basic operation, elucidation of its physical mechanism, and establishment of technological basics for integrated-circuits applications have been addressed. This work has shown a new magnetization switching scheme utilizing spin-orbit interaction, so-called spin-orbit torque induced magnetization switching, and have clarified the factors governing the threshold current density and nano-second dynamics. The sub-ns, field-free magnetization switching has also been demonstrated. Through these researches, fundamental and technological basics of spin-orbit torque switching for the application to integrated circuits have been established.
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