Spin supercurrent in superconductor/ferromagnet van-der-Waals heterostructures
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arXiv
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| Autores principales: | , , |
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| Formato: | Preprint |
| Publicado: |
2024
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| _version_ | 1866914947035824128 |
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| author | Bobkov, G. A. Bobkov, A. M. Bobkova, I. V. |
| author_facet | Bobkov, G. A. Bobkov, A. M. Bobkova, I. V. |
| contents | We study dissipationless spin transport induced by a charge supercurrent in a monolayer van der Waals superconductor under the applied magnetic field and in a bilayer superconductor/ferromagnet (S/F) heterostructure with no external field. It is shown that in both cases a combined action of the Ising-type spin-orbit coupling and the Zeeman field results in appearance of a nonunitary superconducting triplet correlations with nonzero average Cooper pair spin, which carry spin current in the presence of a condensate motion. Properties of this dissipationless spin current are investigated. In particular, it is shown that it manifests a rectification effect. In addition, in S/F heterostructures the amplitude and the sign of the spin current are controlled by gating. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2407_01319 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Spin supercurrent in superconductor/ferromagnet van-der-Waals heterostructures Bobkov, G. A. Bobkov, A. M. Bobkova, I. V. Superconductivity Mesoscale and Nanoscale Physics We study dissipationless spin transport induced by a charge supercurrent in a monolayer van der Waals superconductor under the applied magnetic field and in a bilayer superconductor/ferromagnet (S/F) heterostructure with no external field. It is shown that in both cases a combined action of the Ising-type spin-orbit coupling and the Zeeman field results in appearance of a nonunitary superconducting triplet correlations with nonzero average Cooper pair spin, which carry spin current in the presence of a condensate motion. Properties of this dissipationless spin current are investigated. In particular, it is shown that it manifests a rectification effect. In addition, in S/F heterostructures the amplitude and the sign of the spin current are controlled by gating. |
| title | Spin supercurrent in superconductor/ferromagnet van-der-Waals heterostructures |
| topic | Superconductivity Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2407.01319 |