Optical detection of 4-spin chiral interaction in a 2D honeycomb ferrimagnet
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arXiv
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| Hauptverfasser: | , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866910926447312896 |
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| author | Murzaliev, Bektur Katsnelson, Mikhail Titov, Mikhail |
| author_facet | Murzaliev, Bektur Katsnelson, Mikhail Titov, Mikhail |
| contents | Broken inversion symmetry of magnetic lattice is normally described by Lifshitz invariants in micromagnetic energy functional. Three exceptions are the lattices with T$_\textrm{d}$, C$_\textrm{3h}$ and D$_\textrm{3h}$ point group symmetries. The inversion symmetry breaking of the corresponding magnets is described by more complex 4-spin chiral invariants that cannot be related to Dzyaloshinskii-Moriya interaction. Experimental detection of 4-spin chiral interactions is an important task that has yet to be performed. We propose that the 4-spin chiral interaction can be probed by energy selective magnon relaxation in two-dimensional ferromagnet Fe$_{3}$GeTe$_{2}$ that possess D$_\textrm{3h}$ point group symmetry. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2412_02284 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Optical detection of 4-spin chiral interaction in a 2D honeycomb ferrimagnet Murzaliev, Bektur Katsnelson, Mikhail Titov, Mikhail Materials Science Broken inversion symmetry of magnetic lattice is normally described by Lifshitz invariants in micromagnetic energy functional. Three exceptions are the lattices with T$_\textrm{d}$, C$_\textrm{3h}$ and D$_\textrm{3h}$ point group symmetries. The inversion symmetry breaking of the corresponding magnets is described by more complex 4-spin chiral invariants that cannot be related to Dzyaloshinskii-Moriya interaction. Experimental detection of 4-spin chiral interactions is an important task that has yet to be performed. We propose that the 4-spin chiral interaction can be probed by energy selective magnon relaxation in two-dimensional ferromagnet Fe$_{3}$GeTe$_{2}$ that possess D$_\textrm{3h}$ point group symmetry. |
| title | Optical detection of 4-spin chiral interaction in a 2D honeycomb ferrimagnet |
| topic | Materials Science |
| url | https://arxiv.org/abs/2412.02284 |