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EnglishWe show that the inclusion of nonlocal correlation effects in a variational wave function for the ground state of a topological Anderson lattice Hamiltonian is capable of describing both topologically trivial insulating phases and nontrivial ones characterized by an indirect gap, as well as its closure at the transition into a metallic phase. The method, though applied to an oversimplified model, thus captures the metallic and insulating states that are indeed observed in a variety of Kondo semiconductors, while accounting for topologically nontrivial band structures. © 2016 American Physical Society.
Utilizza questo identificativo per citare o creare un link a questo documento:
http://hdl.handle.net/20.500.11767/48586| Titolo: | Many-body breakdown of indirect gap in topological Kondo insulators |
| Autori: | Wysokiński, M. M.; Fabrizio, M. |
| Rivista: | PHYSICAL REVIEW. B |
| Data di pubblicazione: | 2016 |
| Volume: | 94 |
| Fascicolo: | 12 |
| Pagina iniziale: | 1 |
| Pagina finale: | 5 |
| Digital Object Identifier (DOI): | 10.1103/PhysRevB.94.121102 |
| URL: | https://arxiv.org/abs/1605.08865 http://cdsads.u-strasbg.fr/abs/2016PhRvB..94l1102W |
| Appare nelle tipologie: | 1.1 Journal article |
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