Hedgehog-like spin texture in Sb-doped MnBi$_2$Te$_4$
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arXiv
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| Auteurs principaux: | , , , , , , , , , , , , , , , |
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866916860004401152 |
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| author | Zeng, Meng Mo, Shu Zhang, Ke Hao, Yu-Jie Zhu, Yu-Peng Liu, Xiang-Rui Zhang, Cheng Zhu, Ming-Yuan Kumar, Shiv Iwata, Takuma Miyamoto, Koji Okuda, Taichi Shimada, Kenya Kuroda, Kenta Ma, Xiao-Ming Liu, Chang |
| author_facet | Zeng, Meng Mo, Shu Zhang, Ke Hao, Yu-Jie Zhu, Yu-Peng Liu, Xiang-Rui Zhang, Cheng Zhu, Ming-Yuan Kumar, Shiv Iwata, Takuma Miyamoto, Koji Okuda, Taichi Shimada, Kenya Kuroda, Kenta Ma, Xiao-Ming Liu, Chang |
| contents | We employ spin- and angle-resolved photoemission spectroscopy and circular-dichroism ARPES to systematically investigate the spin texture of Sb-doped MnBi$_2$Te$_4$. Our results display a hedgehog-like spin texture in this system which is signified by reversed-orienting out-of-plane spins at the Dirac gap. Our finding reveals the presence of time-reversal symmetry breaking, implying the possibility for realization of high-temperature quantum anomalous Hall effect. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2502_06416 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Hedgehog-like spin texture in Sb-doped MnBi$_2$Te$_4$ Zeng, Meng Mo, Shu Zhang, Ke Hao, Yu-Jie Zhu, Yu-Peng Liu, Xiang-Rui Zhang, Cheng Zhu, Ming-Yuan Kumar, Shiv Iwata, Takuma Miyamoto, Koji Okuda, Taichi Shimada, Kenya Kuroda, Kenta Ma, Xiao-Ming Liu, Chang Materials Science We employ spin- and angle-resolved photoemission spectroscopy and circular-dichroism ARPES to systematically investigate the spin texture of Sb-doped MnBi$_2$Te$_4$. Our results display a hedgehog-like spin texture in this system which is signified by reversed-orienting out-of-plane spins at the Dirac gap. Our finding reveals the presence of time-reversal symmetry breaking, implying the possibility for realization of high-temperature quantum anomalous Hall effect. |
| title | Hedgehog-like spin texture in Sb-doped MnBi$_2$Te$_4$ |
| topic | Materials Science |
| url | https://arxiv.org/abs/2502.06416 |