| Project/Area Number |
16K14244
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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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| Co-Investigator(Kenkyū-buntansha) |
鈴木 和也 東北大学, 材料科学高等研究所, 助教 (20734297)
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| Co-Investigator(Renkei-kenkyūsha) |
KUBOTA hitoshi 産業技術総合研究所, スピントロニクス研究センター, 総括研究主幹 (30261605)
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| Project Period (FY) |
2016-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2017: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2016: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
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| Keywords | スピントロニクス / テラヘルツ波 / スピントルクダイオード / スピンルク発振素子 / マンガン合金 / スピン注入発振 / テラヘルツ / 磁気トンネル接合 |
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| Outline of Final Research Achievements |
Spin-torque oscillation is one of the auto-oscillation phenomena in spintronics which is observed in nano-scale magnetoresistive devices biased by electric current. The aim of this study is to demonstrate the spin-torque oscillation at near THz wave frequency, 0.1 THz, using our unique Mn-based alloys exhibiting spin precession at THz frequency and small damping as well as unique ultra-thin film growth techniques.
We observed, for the first time, the spin-torque-diode effect originating from the spin-torque working at the frequency over 70 GHz, near the THz wave range. In addition we obtained an insight into giant magnetoresisitive devices and its nano-fabrication for realizing the spin-torque oscillator based on Mn-based alloys for future sub-THz oscillators.
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