Spin-Orbit Coupling and Superconductivity in NoncentrosymmetricHeavy Fermion Materials
| Project/Area Number |
22340088
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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 |
Condensed matter physics II
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| Research Institution | Tohoku University |
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Principal Investigator |
KIMURA Noriaki 東北大学, 大学院・理学研究科, 准教授 (30292311)
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| Project Period (FY) |
2010 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥18,850,000 (Direct Cost: ¥14,500,000、Indirect Cost: ¥4,350,000)
Fiscal Year 2012: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2011: ¥8,450,000 (Direct Cost: ¥6,500,000、Indirect Cost: ¥1,950,000)
Fiscal Year 2010: ¥8,320,000 (Direct Cost: ¥6,400,000、Indirect Cost: ¥1,920,000)
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| Keywords | 強相関系 / 強相関電子系 / 磁性 / 低温物性 / 超伝導 / 物性実験 / 電子構造 / 結晶育成 / フェルミ面 |
|---|
| Research Abstract |
Although spin-orbit coupling influences properties of heavy fermion and superconducting materials, its nature is still unclear. In this research project, we attempted to elucidate the role of the spin-orbit coupling via the de Haas-van Alphen effect and other transport measurements for non-centrosymmetric compounds. We revealed spin-dependent mass-enhancement and extremely high upper-critical field due to the anisotropic paramagnetic de-pairing effect. We also discussed possibilities of superconducting fluctuation arising in the magnetic ordered state for a heavy fermion superconductor and an anomalous superconducting property commonly appearing in non-centrosymmetric materials with low GL parameters.
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Report
(4 results)
Research Products
(88 results)
