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| Autori principali: | , , |
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| Natura: | Preprint |
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2024
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| Accesso online: | https://arxiv.org/abs/2404.18616 |
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| _version_ | 1866910787466952704 |
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| author | Hu, Jin-Xin Matsyshyn, Oles Song, Justin C. W. |
| author_facet | Hu, Jin-Xin Matsyshyn, Oles Song, Justin C. W. |
| contents | Supercurrent flow can induce a nonvanishing spin magnetization in noncentrosymmetric superconductors with spin-orbit interaction. Often known as the non-dissipative magnetoelectric effect, these are most commonly found at linear order in supercurrent flow. Here, we propose that a {\it nonlinear} superconducting magnetoelectric (NSM) effect can naturally manifest in magnet/superconductor heterostructures. In such platforms, NSM manifests as the spin polarization generated as a second-order response to a driving supercurrent. Strikingly, we find NSM survives centrosymmetry and is the leading order magnetic response in a variety of magnetic materials that include both collinear magnets [e.g., $d$-wave planar altermagnet thin film/superconductor (ALM/SC)] as well as noncollinear magnets (e.g., Kagome/SC systems). This renders NSM a powerful electric and non-dissipative means of controlling magnetization in magnet/superconductor heterostructures, a promising platform for superconducting spintronics. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2404_18616 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Nonlinear Superconducting Magnetoelectric Effect Hu, Jin-Xin Matsyshyn, Oles Song, Justin C. W. Superconductivity Quantum Physics Supercurrent flow can induce a nonvanishing spin magnetization in noncentrosymmetric superconductors with spin-orbit interaction. Often known as the non-dissipative magnetoelectric effect, these are most commonly found at linear order in supercurrent flow. Here, we propose that a {\it nonlinear} superconducting magnetoelectric (NSM) effect can naturally manifest in magnet/superconductor heterostructures. In such platforms, NSM manifests as the spin polarization generated as a second-order response to a driving supercurrent. Strikingly, we find NSM survives centrosymmetry and is the leading order magnetic response in a variety of magnetic materials that include both collinear magnets [e.g., $d$-wave planar altermagnet thin film/superconductor (ALM/SC)] as well as noncollinear magnets (e.g., Kagome/SC systems). This renders NSM a powerful electric and non-dissipative means of controlling magnetization in magnet/superconductor heterostructures, a promising platform for superconducting spintronics. |
| title | Nonlinear Superconducting Magnetoelectric Effect |
| topic | Superconductivity Quantum Physics |
| url | https://arxiv.org/abs/2404.18616 |