Superconducting in ferromagnetic materials induced by proximity effect
| Project/Area Number |
18K14112
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| Research Category |
Grant-in-Aid for Early-Career Scientists
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| Allocation Type | Multi-year Fund |
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| Review Section |
Basic Section 29010:Applied physical properties-related
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| Research Institution | The University of Tokyo |
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Principal Investigator |
Kawaguchi Masashi 東京大学, 大学院理学系研究科(理学部), 助教 (90792325)
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| Project Period (FY) |
2018-04-01 – 2020-03-31
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| Project Status |
Completed (Fiscal Year 2019)
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| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2019: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2018: ¥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 / 超伝導 / スピントリプレット / スピン軌道相互作用 / 磁性 |
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| Outline of Final Research Achievements |
In this project, we studied the superconducting states in tungsten with strong spin-orbit interactions for superconducting spintronics. In a tungsten, it was found that the spin absorption is not suppressed even under the superconducting state, implying that tungsten is not a conventional spin singlet superconductor. In addition, the superconducting transition temperature increases in the layered structure with molybdenum nitride. Furthermore, the proximity effect of ferromagnetic cobalt on superconducting was investigated, and it was found that the critical magnetic field of W/Co is larger than that of MoN/Co.
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| Academic Significance and Societal Importance of the Research Achievements |
社会の情報化が高度に発展する中で、従来の半導体デバイスを超えるような高効率な情報処理方法が模索されている。その中で現れてきたスピントロニクスや量子情報といった分野に貢献するべく、本研究は行われた。今回取り扱った超伝導体におけるスピン輸送については新たな情報処理技術につながる可能性があるものの未解明な部分があり、本研究の成果はその理解を進めることになると期待される。
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Report
(3 results)
Research Products
(5 results)
