| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2019: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2018: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2017: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Outline of Final Research Achievements |
In this research, a generator and a detector of spin-polarized supercurrent have been demonstrated by investiging micro-fabricated multi-layers under spin injection. (1) The spin current can be an efficient detector for the superconducting state especially at the normal metal / superconductor interface. (2) A comparison of the spin injections into Nb and NbN can be explained by a simple model of superconducting gap at the interface just below the transition temperature. (3) Several structures for spin absorption show the temperature- and structure-dependent spin signals, which indicates the spin polarized supercurrent may be detected in these structures. (4) Based on the discussion with the theoretical groups, new ways to control spin-polarized supercurrent have been provided.
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