Electromagnetic Proximity Effect: Superconducting Magnonics and Beyond
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| Main Authors: | , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866911305795895296 |
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| author | Yu, Tao Zhou, Xi-Han Bauer, Gerrit E. W. Bobkova, Irina |
| author_facet | Yu, Tao Zhou, Xi-Han Bauer, Gerrit E. W. Bobkova, Irina |
| contents | The exchange interaction at interfaces between superconductors (SCs) and ferromagnets (FMs) has been a central topic in condensed matter physics for many decades, starting with the prediction of exotic phases such as the Fulde-Ferrell-Larkin-Ovchinnikov states and leading to the discovery of triplet superconductivity. This review focuses on new phenomena in SC$|$FM heterostructures caused by the \textit{non-contact dipolar interaction} between magnons, i.e., the quanta of spin wave excitations in the ferromagnet, and the superconducting order. A universal non-relativistic spin-orbit coupling locks the polarization and momentum of their evanescent stray magnetic fields and leads to chiral screening by proximate superconductors. The interaction-induced hybrid quasiparticles are magnon-Meissner collective modes, magnon-cooparon, Josephson plasmonic modes, and nodal magnon-photon polaritons. Superconducting and normal metallic gates modulate and control the magnetodipolar interaction and thereby magnetization and energy transport at interfaces and in thin films. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2506_18502 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Electromagnetic Proximity Effect: Superconducting Magnonics and Beyond Yu, Tao Zhou, Xi-Han Bauer, Gerrit E. W. Bobkova, Irina Superconductivity The exchange interaction at interfaces between superconductors (SCs) and ferromagnets (FMs) has been a central topic in condensed matter physics for many decades, starting with the prediction of exotic phases such as the Fulde-Ferrell-Larkin-Ovchinnikov states and leading to the discovery of triplet superconductivity. This review focuses on new phenomena in SC$|$FM heterostructures caused by the \textit{non-contact dipolar interaction} between magnons, i.e., the quanta of spin wave excitations in the ferromagnet, and the superconducting order. A universal non-relativistic spin-orbit coupling locks the polarization and momentum of their evanescent stray magnetic fields and leads to chiral screening by proximate superconductors. The interaction-induced hybrid quasiparticles are magnon-Meissner collective modes, magnon-cooparon, Josephson plasmonic modes, and nodal magnon-photon polaritons. Superconducting and normal metallic gates modulate and control the magnetodipolar interaction and thereby magnetization and energy transport at interfaces and in thin films. |
| title | Electromagnetic Proximity Effect: Superconducting Magnonics and Beyond |
| topic | Superconductivity |
| url | https://arxiv.org/abs/2506.18502 |