Unravelling spontaneous Bloch-type skyrmion in centrosymmetric two-dimensional magnets
Fuente:
arXiv
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| Autores principales: | , , , , |
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| Formato: | Preprint |
| Publicado: |
2023
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| Materias: | |
| Acceso en línea: | |
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| _version_ | 1866908852600963072 |
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| author | Pang, Jingman Niu, Xiaohang Zhao, Hong Jian Zhang, Yun Bellaiche, Laurent |
| author_facet | Pang, Jingman Niu, Xiaohang Zhao, Hong Jian Zhang, Yun Bellaiche, Laurent |
| contents | The realization of magnetic skyrmions in two-dimensional (2D) magnets holds great promise for both fundamental research and device applications. Despite recent progress, two-dimensional skyrmion hosts are still limited, due to the fact that most 2D magnets are centrosymmetric and thus lack Dzyaloshinskii-Moriya interaction (DMI). We show here, using a general analysis based on symmetry, that Bloch-type skyrmions can, in fact, be stabilized in 2D magnets, due to the interplay between in-plane component (dx) of second nearest-neighbor DMI and magnetic anisotropy. Its validity is demonstrated in the Cr2Ge2Te6 monolayer, which is also verified by recent experiments. Our work gives a clear direction for experimental studies of 2D magnetic materials to stabilize skyrmions and should greatly enrich the research on magnetic skyrmions in 2D lattices. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2312_00423 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Unravelling spontaneous Bloch-type skyrmion in centrosymmetric two-dimensional magnets Pang, Jingman Niu, Xiaohang Zhao, Hong Jian Zhang, Yun Bellaiche, Laurent Materials Science The realization of magnetic skyrmions in two-dimensional (2D) magnets holds great promise for both fundamental research and device applications. Despite recent progress, two-dimensional skyrmion hosts are still limited, due to the fact that most 2D magnets are centrosymmetric and thus lack Dzyaloshinskii-Moriya interaction (DMI). We show here, using a general analysis based on symmetry, that Bloch-type skyrmions can, in fact, be stabilized in 2D magnets, due to the interplay between in-plane component (dx) of second nearest-neighbor DMI and magnetic anisotropy. Its validity is demonstrated in the Cr2Ge2Te6 monolayer, which is also verified by recent experiments. Our work gives a clear direction for experimental studies of 2D magnetic materials to stabilize skyrmions and should greatly enrich the research on magnetic skyrmions in 2D lattices. |
| title | Unravelling spontaneous Bloch-type skyrmion in centrosymmetric two-dimensional magnets |
| topic | Materials Science |
| url | https://arxiv.org/abs/2312.00423 |