Optical detection of spin orbit effects
| Project/Area Number |
16H03853
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Applied materials
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| Research Institution | The University of Tokyo |
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Principal Investigator |
Hayashi Masamitsu 東京大学, 大学院理学系研究科(理学部), 准教授 (70517854)
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| Research Collaborator |
AWANO Hiroyuki
MITANI Seiji
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| Project Period (FY) |
2016-04-01 – 2019-03-31
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| Project Status |
Completed (Fiscal Year 2018)
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| Budget Amount *help |
¥17,420,000 (Direct Cost: ¥13,400,000、Indirect Cost: ¥4,020,000)
Fiscal Year 2018: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2017: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2016: ¥12,480,000 (Direct Cost: ¥9,600,000、Indirect Cost: ¥2,880,000)
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| Keywords | 磁気光学効果 / スピン軌道相互作用 / 光検出 / スピン流 / スピン蓄積 / 光学 / 薄膜ヘテロ構造 / ヘテロ構造 |
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| Outline of Final Research Achievements |
We aim to develop a system that can evaluate spin orbit effects in thin film heterostructures using optical means. Through this project, we have developed an optical setup that can resolve extremely small changes of the magneto-optical signal that enables optical detection spin orbit torque and spin accumulation. We have also demonstrated optical detection of Rashba-type electronic structure at metallic interfaces using the photogalvanic effect.
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| Academic Significance and Societal Importance of the Research Achievements |
スピンホール角やスピントルク、ジャロシンスキー・守谷相互作用の大きさはスピン軌道効果をデバイスに応用する上での最重要パラメータであり、精緻な計測技術が必要不可欠である。本研究で構築した光解析技術により、スピン蓄積やスピン軌道トルク、界面の電子構造を精密に評価できることが明らかになった。今後はこの技術を利用して、様々な物質におけるスピン軌道効果を調査し、その起源解明に迫る。
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Report
(4 results)
Research Products
(29 results)
