Tunable High Spin Chern-Number Insulator Phases in Strained Sb Monolayer
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_ | 1866909419717001216 |
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| author | Cook, Jacob Yang, Po-Yuan Volz, Theo Conner, Clayton Satterfield, Riley Berglund, Joseph Lu, Qiangsheng Moore, Rob G. Yao, Yueh-Ting Chang, Tay-Rong Bian, Guang |
| author_facet | Cook, Jacob Yang, Po-Yuan Volz, Theo Conner, Clayton Satterfield, Riley Berglund, Joseph Lu, Qiangsheng Moore, Rob G. Yao, Yueh-Ting Chang, Tay-Rong Bian, Guang |
| contents | High spin Chern-number insulators (HSCI) have emerged as a novel 2D topological phase of condensed matter that is beyond the classification of topological quantum chemistry. In this work, we report the observation of a semimetallic Sb monolayer carrying the same band topology as HSCI with a spin Chern number equal to 2. Our calculations further indicate a moderate lattice strain can make Sb monolayer an insulator or a semimetal with a tunable spin Chern number from 0 to 3. The results suggest strained Sb monolayers as a promising platform for exploring exotic properties of the HSCI topological matter. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2312_02316 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Tunable High Spin Chern-Number Insulator Phases in Strained Sb Monolayer Cook, Jacob Yang, Po-Yuan Volz, Theo Conner, Clayton Satterfield, Riley Berglund, Joseph Lu, Qiangsheng Moore, Rob G. Yao, Yueh-Ting Chang, Tay-Rong Bian, Guang Materials Science Mesoscale and Nanoscale Physics High spin Chern-number insulators (HSCI) have emerged as a novel 2D topological phase of condensed matter that is beyond the classification of topological quantum chemistry. In this work, we report the observation of a semimetallic Sb monolayer carrying the same band topology as HSCI with a spin Chern number equal to 2. Our calculations further indicate a moderate lattice strain can make Sb monolayer an insulator or a semimetal with a tunable spin Chern number from 0 to 3. The results suggest strained Sb monolayers as a promising platform for exploring exotic properties of the HSCI topological matter. |
| title | Tunable High Spin Chern-Number Insulator Phases in Strained Sb Monolayer |
| topic | Materials Science Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2312.02316 |