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| Main Authors: | , , , |
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| Format: | Preprint |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2412.08607 |
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| _version_ | 1866909615477751808 |
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| author | de Lima, Felipe Crasto Miwa, Roberto H. Lewenkopf, Caio Fazzio, Adalberto |
| author_facet | de Lima, Felipe Crasto Miwa, Roberto H. Lewenkopf, Caio Fazzio, Adalberto |
| contents | We investigate the robustness of {\it virtual} topological states -- topological phases away from the Fermi energy -- against the electron-electron interaction and band filling. As a case study, we employ a realistic model to investigate the properties of vacancy-driven topological phases in transition metal dichalcogenides (TMDs) and establish a connection between the degree of localization of topological wave functions, the vacancy density, and the electron-electron interaction strength with the topological phase robustness. We demonstrate that electron-electron interactions play a crucial role in degrading topological phases thereby determining the validity of single-particle approximations for topological insulator phases. Our findings can be naturally extended to {\it virtual} topological phases of a wide range of materials. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2412_08607 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Interacting Virtual Topological Phases in Defect-Rich 2D Materials de Lima, Felipe Crasto Miwa, Roberto H. Lewenkopf, Caio Fazzio, Adalberto Materials Science We investigate the robustness of {\it virtual} topological states -- topological phases away from the Fermi energy -- against the electron-electron interaction and band filling. As a case study, we employ a realistic model to investigate the properties of vacancy-driven topological phases in transition metal dichalcogenides (TMDs) and establish a connection between the degree of localization of topological wave functions, the vacancy density, and the electron-electron interaction strength with the topological phase robustness. We demonstrate that electron-electron interactions play a crucial role in degrading topological phases thereby determining the validity of single-particle approximations for topological insulator phases. Our findings can be naturally extended to {\it virtual} topological phases of a wide range of materials. |
| title | Interacting Virtual Topological Phases in Defect-Rich 2D Materials |
| topic | Materials Science |
| url | https://arxiv.org/abs/2412.08607 |