Topological Magnon-Plasmon Hybrids
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arXiv
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866914553094209536 |
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| author | Hirosawa, Tomoki Gunnink, Pieter M. Mook, Alexander |
| author_facet | Hirosawa, Tomoki Gunnink, Pieter M. Mook, Alexander |
| contents | We study magnon-plasmon coupling in effectively two-dimensional stacks of van der Waals layers in the context of the band structure topology. Invoking the quasiparticle approximation, we show that the magnetic dipole coupling between the plasmons in a metallic layer and the magnons in a neighboring magnetic layer gives rise to a Berry curvature. As a result, the hybrid quasiparticles acquire an anomalous velocity, leading to intrinsic anomalous thermal Hall and spin-Nernst effects in ferromagnets and antiferromagnets. We propose magnetic layers supporting skyrmion crystals as a platform to realize chiral magnon-plasmon edge states, inviting the notion of topological magnon-plasmonics. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_07916 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Topological Magnon-Plasmon Hybrids Hirosawa, Tomoki Gunnink, Pieter M. Mook, Alexander Mesoscale and Nanoscale Physics Strongly Correlated Electrons We study magnon-plasmon coupling in effectively two-dimensional stacks of van der Waals layers in the context of the band structure topology. Invoking the quasiparticle approximation, we show that the magnetic dipole coupling between the plasmons in a metallic layer and the magnons in a neighboring magnetic layer gives rise to a Berry curvature. As a result, the hybrid quasiparticles acquire an anomalous velocity, leading to intrinsic anomalous thermal Hall and spin-Nernst effects in ferromagnets and antiferromagnets. We propose magnetic layers supporting skyrmion crystals as a platform to realize chiral magnon-plasmon edge states, inviting the notion of topological magnon-plasmonics. |
| title | Topological Magnon-Plasmon Hybrids |
| topic | Mesoscale and Nanoscale Physics Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2510.07916 |