Non-constant geometric curvature for tailored spin-orbit coupling and chirality in superconductor-magnet heterostructures
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arXiv
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| Main Authors: | , , , , |
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| Format: | Preprint |
| Published: |
2023
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| _version_ | 1866914747401633792 |
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| author | Skarpeid, Alv Johan Hugdal, Henning G. Salamone, Tancredi Amundsen, Morten Jacobsen, Sol H. |
| author_facet | Skarpeid, Alv Johan Hugdal, Henning G. Salamone, Tancredi Amundsen, Morten Jacobsen, Sol H. |
| contents | We show that tailoring the geometric curvature profile of magnets can be used for bespoke design of an effective non-relativistic spin-orbit coupling, which may be used to control proximity effects if the magnet is coupled to a superconductor. We consider proximity-coupled one-dimensional magnetic wires with variable curvatures, specifically three distinct shapes classified as J-, C-, and S-type. We demonstrate a chirality-dependent spin polarization of the superconducting correlations, and show the role of curvature in determining the ground state of mixed-chirality junctions. We speculate on how this may be implemented in novel device design, and include analysis of its usage in a spin-triplet SQUID |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2312_06774 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Non-constant geometric curvature for tailored spin-orbit coupling and chirality in superconductor-magnet heterostructures Skarpeid, Alv Johan Hugdal, Henning G. Salamone, Tancredi Amundsen, Morten Jacobsen, Sol H. Superconductivity We show that tailoring the geometric curvature profile of magnets can be used for bespoke design of an effective non-relativistic spin-orbit coupling, which may be used to control proximity effects if the magnet is coupled to a superconductor. We consider proximity-coupled one-dimensional magnetic wires with variable curvatures, specifically three distinct shapes classified as J-, C-, and S-type. We demonstrate a chirality-dependent spin polarization of the superconducting correlations, and show the role of curvature in determining the ground state of mixed-chirality junctions. We speculate on how this may be implemented in novel device design, and include analysis of its usage in a spin-triplet SQUID |
| title | Non-constant geometric curvature for tailored spin-orbit coupling and chirality in superconductor-magnet heterostructures |
| topic | Superconductivity |
| url | https://arxiv.org/abs/2312.06774 |