Magnon-plasmon coupling mediated by linear magnetoelectric effect in two-dimensional crystals with Dzyaloshinskii-Moriya interaction
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arXiv
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| Format: | Preprint |
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2025
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| author | Rudziński, Wojciech Jafari, Mirali Barnaś, Józef Dyrdał, Anna |
| author_facet | Rudziński, Wojciech Jafari, Mirali Barnaś, Józef Dyrdał, Anna |
| contents | Recently, one can observe a renewed interest in coupling of spin waves (magnons) and collective charge oscillations (plasmons), especially in two-dimensional systems. Several mechanisms of the magnon-plasmon hybridization in ferromagnetic and antiferromagnetic systems have been proposed. Here, we consider another mechanism of magnon-plasmon hybridization, which is based on the linear magnetoelectric interaction. As a specific system we consider a monolayer of vanadium-based diselenide with perpendicular easy-axis magnetic anisotropy and Dzialoshinskii-Moriya interaction. The derived parameter of magnon-plasmon coupling is proportional to the magnetoelectric constant. Assuming for this constant an adequate experimental value, we calculate dispersion relations of the hybridized magnon-plasmon mods. Moreover, we also show that an external electric field normal to the layer (due to a gate voltage) can be used as a tool to tune the magnon modes and this way also hybridized magnon-plasmon coupling. A specific case of magnon-plasmon coupling based on tuning Dzialoshinskii-Moriya interaction is also considered. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2506_11834 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Magnon-plasmon coupling mediated by linear magnetoelectric effect in two-dimensional crystals with Dzyaloshinskii-Moriya interaction Rudziński, Wojciech Jafari, Mirali Barnaś, Józef Dyrdał, Anna Mesoscale and Nanoscale Physics Recently, one can observe a renewed interest in coupling of spin waves (magnons) and collective charge oscillations (plasmons), especially in two-dimensional systems. Several mechanisms of the magnon-plasmon hybridization in ferromagnetic and antiferromagnetic systems have been proposed. Here, we consider another mechanism of magnon-plasmon hybridization, which is based on the linear magnetoelectric interaction. As a specific system we consider a monolayer of vanadium-based diselenide with perpendicular easy-axis magnetic anisotropy and Dzialoshinskii-Moriya interaction. The derived parameter of magnon-plasmon coupling is proportional to the magnetoelectric constant. Assuming for this constant an adequate experimental value, we calculate dispersion relations of the hybridized magnon-plasmon mods. Moreover, we also show that an external electric field normal to the layer (due to a gate voltage) can be used as a tool to tune the magnon modes and this way also hybridized magnon-plasmon coupling. A specific case of magnon-plasmon coupling based on tuning Dzialoshinskii-Moriya interaction is also considered. |
| title | Magnon-plasmon coupling mediated by linear magnetoelectric effect in two-dimensional crystals with Dzyaloshinskii-Moriya interaction |
| topic | Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2506.11834 |