Low power consuming magnetization reversal using electric field coupled spin injector
| Project/Area Number |
25630153
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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 | Keio University |
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Principal Investigator |
NOZAKI Yukio 慶應義塾大学, 理工学部, 准教授 (30304760)
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| Project Period (FY) |
2013-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2014: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2013: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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| Keywords | 強磁性共鳴 / マイクロ波アシスト磁気記録 / スピン流 / スピントランスファートルク / マイクロ波アシスト磁化反転 / マイクロ波アシスト記録 / 垂直磁気記録 |
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| Outline of Final Research Achievements |
In order to realize a microwave-assisted magnetic recording in next generation perpendicular medium, we studied some essential technologies needed for developing an electric field coupled spin injector. First, we succeeded to measure a spin transfer torque due to a spin current precisely by using a lateral spin valve structure. Then, it was demonstrated that the magnetization reversal in patterned ferromagnetic thin films could be assisted by a spin current owing to a spin pumping. Furthermore, we examined a circuit design for an electric field coupled excitation of FMR by using a test device composed of interdigital transducers on a piezoelectric substrate.
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Report
(3 results)
Research Products
(14 results)
