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| Main Authors: | , , , , |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2509.06538 |
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| _version_ | 1866908531425280000 |
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| author | Du, Quanchao Zhang, Zhenlong Ni, Jinyang Jiang, Zhijun Bellaiche, Laurent |
| author_facet | Du, Quanchao Zhang, Zhenlong Ni, Jinyang Jiang, Zhijun Bellaiche, Laurent |
| contents | Nonreciprocal magnons, characterized by propagation with differing energies along the k and -k directions, are crucial for modern spintronics applications. However, their realization in van der Waals layered antiferromagnets remains elusive. In this letter, we report robust nonreciprocal magnon behavior in layered honeycomb antiferromagnets VPX3(X =S,Se,Te). Our results demonstrate that, in addition to their intrinsic Dzyaloshinskii-Moriya interaction (DMI), the nonreciprocity of magnons is strongly influenced by the layer number, interlayer coupling, and magnon-magnon interactions. More importantly, in such layered antiferromagnets, the magnon nonreciprocity exhibits an asymmetric periodic dependence on the Neel vector, offering a novel route for experimentally probing antiferromagnetic order parameters in the 2D limit. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2509_06538 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Nonreciprocal magnons in layered antiferromagnets VPX3(X =S,Se,Te) Du, Quanchao Zhang, Zhenlong Ni, Jinyang Jiang, Zhijun Bellaiche, Laurent Materials Science Nonreciprocal magnons, characterized by propagation with differing energies along the k and -k directions, are crucial for modern spintronics applications. However, their realization in van der Waals layered antiferromagnets remains elusive. In this letter, we report robust nonreciprocal magnon behavior in layered honeycomb antiferromagnets VPX3(X =S,Se,Te). Our results demonstrate that, in addition to their intrinsic Dzyaloshinskii-Moriya interaction (DMI), the nonreciprocity of magnons is strongly influenced by the layer number, interlayer coupling, and magnon-magnon interactions. More importantly, in such layered antiferromagnets, the magnon nonreciprocity exhibits an asymmetric periodic dependence on the Neel vector, offering a novel route for experimentally probing antiferromagnetic order parameters in the 2D limit. |
| title | Nonreciprocal magnons in layered antiferromagnets VPX3(X =S,Se,Te) |
| topic | Materials Science |
| url | https://arxiv.org/abs/2509.06538 |