Berry Curvature Induced Spin Nernst and Thermal Edelstein Effects in Proximity Superconductors
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arXiv
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| Autori principali: | , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| _version_ | 1866911115369250816 |
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| author | Liao, Zhen-Cheng Xiao, Cong Wang, Zhi Niu, Qian |
| author_facet | Liao, Zhen-Cheng Xiao, Cong Wang, Zhi Niu, Qian |
| contents | We propose two thermo-spintronic responses in proximity induced superconductors with spin-orbit coupled band - spin Nernst effect and thermal Edelstein effect stemming respectively from momentum-space and mixed superconducting Berry curvatures. We unveil that the Bloch band spin-orbit coupling and pairing are entangled in shaping the superconducting Berry curvatures rather than in an additive manner. The resulting thermo-spintronic responses are significantly enhanced at low temperatures by the emergence of Bogoliubov Fermi surface, and can be effectively controlled by tuning the latter. The effects render a probe of Bogoliubov Fermi surface and superconducting Berry curvatures supported by it. Our work reveals Berry curvature properties in topologically trivial proximity superconductors with spin-orbit coupling, and opens a new route to superconducting spintronics. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2412_08451 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Berry Curvature Induced Spin Nernst and Thermal Edelstein Effects in Proximity Superconductors Liao, Zhen-Cheng Xiao, Cong Wang, Zhi Niu, Qian Superconductivity We propose two thermo-spintronic responses in proximity induced superconductors with spin-orbit coupled band - spin Nernst effect and thermal Edelstein effect stemming respectively from momentum-space and mixed superconducting Berry curvatures. We unveil that the Bloch band spin-orbit coupling and pairing are entangled in shaping the superconducting Berry curvatures rather than in an additive manner. The resulting thermo-spintronic responses are significantly enhanced at low temperatures by the emergence of Bogoliubov Fermi surface, and can be effectively controlled by tuning the latter. The effects render a probe of Bogoliubov Fermi surface and superconducting Berry curvatures supported by it. Our work reveals Berry curvature properties in topologically trivial proximity superconductors with spin-orbit coupling, and opens a new route to superconducting spintronics. |
| title | Berry Curvature Induced Spin Nernst and Thermal Edelstein Effects in Proximity Superconductors |
| topic | Superconductivity |
| url | https://arxiv.org/abs/2412.08451 |