Electrical control of superconducting spin valves using ferromagnetic helices
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arXiv
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| Auteurs principaux: | , , , |
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| Format: | Preprint |
| Publié: |
2024
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| _version_ | 1866913643236425728 |
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| author | Salamone, Tancredi Hugdal, Henning G. Amundsen, Morten Jacobsen, Sol H. |
| author_facet | Salamone, Tancredi Hugdal, Henning G. Amundsen, Morten Jacobsen, Sol H. |
| contents | The geometrical properties of a helical ferromagnet are shown theoretically to control the critical temperature of a proximity-coupled superconductor. Using the Usadel equation for diffusive spin transport, we provide self-consistent analysis of how curvature and torsion modulate the proximity effect. When the helix is attached to a piezoelectric actuator, the pitch of the helix -- and hence the superconducting transition -- can be controlled electrically. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2404_05798 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Electrical control of superconducting spin valves using ferromagnetic helices Salamone, Tancredi Hugdal, Henning G. Amundsen, Morten Jacobsen, Sol H. Superconductivity The geometrical properties of a helical ferromagnet are shown theoretically to control the critical temperature of a proximity-coupled superconductor. Using the Usadel equation for diffusive spin transport, we provide self-consistent analysis of how curvature and torsion modulate the proximity effect. When the helix is attached to a piezoelectric actuator, the pitch of the helix -- and hence the superconducting transition -- can be controlled electrically. |
| title | Electrical control of superconducting spin valves using ferromagnetic helices |
| topic | Superconductivity |
| url | https://arxiv.org/abs/2404.05798 |