| Project/Area Number |
25887053
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| Research Category |
Grant-in-Aid for Research Activity Start-up
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| Allocation Type | Single-year Grants |
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| Research Field |
Condensed matter physics II
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| Research Institution | The Institute of Physical and Chemical Research |
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Principal Investigator |
HIKINO Shin-ichi 独立行政法人理化学研究所, 柚木計算物性物理研究室, 基礎科学特別研究員 (80587923)
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| Project Period (FY) |
2013-08-30 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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| Keywords | 強磁性ジョセフソン接合 / 超伝導体 / 強磁性体 / 超伝導 / 強磁性 / 複合構造 |
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| Outline of Final Research Achievements |
1)We have theoretically predicted that long-range spin current is driven by phase difference between two superconductors in ferromagnetic Josephson junction. 2)We have shown that superconductor/ferromagnetic insulator/superconductor junction is a promising potential of this junction as spin pumping device by applying DC voltage.3)We have proposed how to observe the breathing mode of domain wall by the Josephson junction having a ferromagnetic layer, with a magnetic domain wall between superconducting electrodes. 4)We have theoretically studied the Josephson effect in a superconductor/normal metal/superconductor (S/N/S) Josephson junction composed of s-wave Ss with N which is sandwiched by two ferromagnetic insulators (Fs), forming a spin valve,in the vertical direction of the junction. We have shown that o-pi transition can be freely controlled. It is expected that result indicates a promising potential of this junction as a 0-pi switching device.
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