Predicted versatile topological nodal magnons in Tb-based icosahedral quasicrystal 1/1 approximants
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arXiv
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| Autores principales: | , , |
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| Formato: | Preprint |
| Publicado: |
2025
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| _version_ | 1866915434043801600 |
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| author | Eto, Rintaro Mochizuki, Masahito Watanabe, Shinji |
| author_facet | Eto, Rintaro Mochizuki, Masahito Watanabe, Shinji |
| contents | Using a recently-established band representation analysis, we discover two distinct types of topological nodal magnons in the real-space antiferroic ordering of whirling spin arrangements in the Tb-based icosahedral quasicrystal 1/1 approximants, both of which originate from a composite band (co-)representation $A\uparrow P_In\bar{3}(24)$ and its constituent elementary band representations. The first type is doubly-degenerate nodal line network and nodal planes associated with two-dimensional irreducible band representation, while the second type is a nodal line network due to accidental band inversions. Since our analysis, which relies solely on magnetocrystalline symmetry, is valid for a wide range of materials and spin textures belonging to the same magnetic space group irrespective of composition, these findings offer new universal insights into the research of Tb-based quasicrystal approximants as well as a contribution to broadening the range of topological magnon-hosting materials. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2502_11286 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Predicted versatile topological nodal magnons in Tb-based icosahedral quasicrystal 1/1 approximants Eto, Rintaro Mochizuki, Masahito Watanabe, Shinji Strongly Correlated Electrons Materials Science Using a recently-established band representation analysis, we discover two distinct types of topological nodal magnons in the real-space antiferroic ordering of whirling spin arrangements in the Tb-based icosahedral quasicrystal 1/1 approximants, both of which originate from a composite band (co-)representation $A\uparrow P_In\bar{3}(24)$ and its constituent elementary band representations. The first type is doubly-degenerate nodal line network and nodal planes associated with two-dimensional irreducible band representation, while the second type is a nodal line network due to accidental band inversions. Since our analysis, which relies solely on magnetocrystalline symmetry, is valid for a wide range of materials and spin textures belonging to the same magnetic space group irrespective of composition, these findings offer new universal insights into the research of Tb-based quasicrystal approximants as well as a contribution to broadening the range of topological magnon-hosting materials. |
| title | Predicted versatile topological nodal magnons in Tb-based icosahedral quasicrystal 1/1 approximants |
| topic | Strongly Correlated Electrons Materials Science |
| url | https://arxiv.org/abs/2502.11286 |