| Project/Area Number |
21840035
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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 | Osaka University |
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Principal Investigator |
FUSEYA Yuki Osaka University, 大学院・基礎工学研究科, 助教 (00377954)
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| Project Period (FY) |
2009 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
|
| Budget Amount *help |
¥2,704,000 (Direct Cost: ¥2,080,000、Indirect Cost: ¥624,000)
Fiscal Year 2010: ¥1,287,000 (Direct Cost: ¥990,000、Indirect Cost: ¥297,000)
Fiscal Year 2009: ¥1,417,000 (Direct Cost: ¥1,090,000、Indirect Cost: ¥327,000)
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| Keywords | 遍歴・局在二重性 / 奇振動数超伝導 / マイスナー効果 / スピンゆらぎ / 電子・格子結合 |
|---|
| Research Abstract |
The "40 years problem" of the stability of odd-frequency superconductivity is solved. It is shown that the spin fluctuation largely affects the properties of superconductivity (e.g. the reduction of the superfluid density) through the itinerant-localized duality. It is also shown that the itinerant-localized duality can realize the zero-field FFLO state when the spin fluctuation is strong enough. We found that not only in the strongly correlated electron systems, but also in the strong electron-phonon coupling systems, the odd-frequency superconductivity can be realized.
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