Study of spin-orbit coupling effects on superconducting and superfluid properties in spatially inhomogeneous enviroments
| Project/Area Number |
25800194
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Condensed matter physics II
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| Research Institution | Osaka University (2014-2015)
Kyoto University (2013) |
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Principal Investigator |
Aoyama Kazushi 大阪大学, 理学(系)研究科(研究院), 助教 (00623133)
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2015: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2014: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
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| Keywords | スピン-軌道カップリング / 超伝導 / 超流動ヘリウム３ / ストライプ相 / 準粒子状態 / スピン・軌道相互作用 / 空間反転対称性の破れた超伝導体 / 双晶境界 / 臨界磁場 / 超流動ヘリウム3 / ストライプ秩序 |
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| Outline of Final Research Achievements |
Electrons and atoms are the elementary particles in solids and liquids. They have spin and orbital degrees of freedom which are respectively relevant to magnetic properties and particle distributions and flows such as the electronic current. In this research project, we discussed effects of the coupling between spin and orbital degrees of freedom on superconducting and superfluid properties at system surfaces and domain boundaries. It was found that in non-centrosymmetric superconductors possessing crystal domains with opposite signs of the spin-orbit coupling, the upper critical field is enhanced at the domain boundary. We also showed that in superfluid 3He confined in small size containers, a stripe structure is induced due to the surface scattering effects and the internal degrees of freedom of the order parameter which are characteristic of the spin-orbit coupled superfluid 3He.
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Report
(4 results)
Research Products
(11 results)
