Magnetization dependent anisotropic topological properties in EuCuP
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arXiv
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| Auteurs principaux: | , , , , , , , , |
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| Format: | Preprint |
| Publié: |
2024
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| _version_ | 1866914949971836928 |
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| author | Yuan, Jian Shi, Xianbiao Du, Hong Wang, Xia Cheng, Jinguang Wang, Baotian Zhong, Ruidan Zhang, Shihao Guo, Yanfeng |
| author_facet | Yuan, Jian Shi, Xianbiao Du, Hong Wang, Xia Cheng, Jinguang Wang, Baotian Zhong, Ruidan Zhang, Shihao Guo, Yanfeng |
| contents | The correlation between magnetism and nontrivial topological band structure serves as a unique venue for discovering exotic topological properties. Combining magnetotransport measurements and first-principles calculations, we unveil herein that the hexagonal EuCuP holds topologically trivial state in the paramagnetic structure, while strong magnetization dependent anisotropic topological states in the spin-polarization structures. Specifically, it hosts a trivial topological state in the in-plane spin-polarization structure, while a Weyl semimetal state in the out-of-plane spin-polarization structure. Our scaling analysis suggests that the intrinsic Berry curvature in the spin-polarization structures can account for the observed large anisotropic anomalous Hall effect. First-principles calculations show that the magnetization and the spin-orbit coupling simultaneously play essential roles for the appearance of the four pairs of Weyl points in the out-of-plane spin-polarization structure. Our work therefore establishes in EuCuP the intimate relation between magnetism and the nontrivial topological states, which would be instructive for future study on this key issue of topological physics. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2409_10061 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Magnetization dependent anisotropic topological properties in EuCuP Yuan, Jian Shi, Xianbiao Du, Hong Wang, Xia Cheng, Jinguang Wang, Baotian Zhong, Ruidan Zhang, Shihao Guo, Yanfeng Strongly Correlated Electrons Materials Science The correlation between magnetism and nontrivial topological band structure serves as a unique venue for discovering exotic topological properties. Combining magnetotransport measurements and first-principles calculations, we unveil herein that the hexagonal EuCuP holds topologically trivial state in the paramagnetic structure, while strong magnetization dependent anisotropic topological states in the spin-polarization structures. Specifically, it hosts a trivial topological state in the in-plane spin-polarization structure, while a Weyl semimetal state in the out-of-plane spin-polarization structure. Our scaling analysis suggests that the intrinsic Berry curvature in the spin-polarization structures can account for the observed large anisotropic anomalous Hall effect. First-principles calculations show that the magnetization and the spin-orbit coupling simultaneously play essential roles for the appearance of the four pairs of Weyl points in the out-of-plane spin-polarization structure. Our work therefore establishes in EuCuP the intimate relation between magnetism and the nontrivial topological states, which would be instructive for future study on this key issue of topological physics. |
| title | Magnetization dependent anisotropic topological properties in EuCuP |
| topic | Strongly Correlated Electrons Materials Science |
| url | https://arxiv.org/abs/2409.10061 |