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| Autores principales: | , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2025
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| Materias: | |
| Acceso en línea: | https://arxiv.org/abs/2507.21717 |
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| _version_ | 1866909710659092480 |
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| author | Jin, Zhejunyu Zeng, Zhaozhuo Liu, Jie Gong, Tianci Su, Ying Chang, Kai Yan, Peng |
| author_facet | Jin, Zhejunyu Zeng, Zhaozhuo Liu, Jie Gong, Tianci Su, Ying Chang, Kai Yan, Peng |
| contents | Nonrelativistic magnon chiral splitting in altermagnets has garnered significant recent attention. In this work, we demonstrate that nonlinear three-wave mixing -- where magnons split or coalesce -- extends this phenomenon into unprecedented relativistic regimes. Employing a bilayer antiferromagnet with Dzyaloshinskii-Moriya interactions, we identify three distinct classes of chiral splitting, each dictated by specific symmetries, such as $C_4T$, $σ_v T$, or their combination. This reveals a novel bosonic mechanism for symmetry-protected chiral splitting, capitalizing on the unique ability of magnons to violate particle-number conservation, a feature absent in low-energy fermionic systems. Our findings pave the way for engineering altermagnetic splitting, with potential applications in advanced magnonic devices and deeper insights into magnon dynamics in complex magnetic systems. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2507_21717 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Interaction-Driven Altermagnetic Magnon Chiral Splitting Jin, Zhejunyu Zeng, Zhaozhuo Liu, Jie Gong, Tianci Su, Ying Chang, Kai Yan, Peng Materials Science Nonrelativistic magnon chiral splitting in altermagnets has garnered significant recent attention. In this work, we demonstrate that nonlinear three-wave mixing -- where magnons split or coalesce -- extends this phenomenon into unprecedented relativistic regimes. Employing a bilayer antiferromagnet with Dzyaloshinskii-Moriya interactions, we identify three distinct classes of chiral splitting, each dictated by specific symmetries, such as $C_4T$, $σ_v T$, or their combination. This reveals a novel bosonic mechanism for symmetry-protected chiral splitting, capitalizing on the unique ability of magnons to violate particle-number conservation, a feature absent in low-energy fermionic systems. Our findings pave the way for engineering altermagnetic splitting, with potential applications in advanced magnonic devices and deeper insights into magnon dynamics in complex magnetic systems. |
| title | Interaction-Driven Altermagnetic Magnon Chiral Splitting |
| topic | Materials Science |
| url | https://arxiv.org/abs/2507.21717 |