External tuning of topological phase transitions induced by interaction driven mass renormalization.
J Phys Condens Matter
; 34(7)2021 Nov 23.
Article
en En
| MEDLINE
| ID: mdl-34753111
ABSTRACT
Electron-electron interactions can be useful for realizing new nontrivial topological phases of matter. Here, we show by means of a tight-binding model and mean field theory how electron-electron interactions can lead to a topological phase transition. By externally adding or removing electrons from the system a band inversion between two bands with different parity is induced. This leads to a topological nontrivial phase if spin-orbit coupling is present. Besides the toy-model illustrating this mechanism, we also propose SmB6as a possible playground for experimentally realizing a topological phase transition by external tuning.
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1
Colección:
01-internacional
Base de datos:
MEDLINE
Idioma:
En
Revista:
J Phys Condens Matter
Asunto de la revista:
BIOFISICA
Año:
2021
Tipo del documento:
Article
País de afiliación:
Países Bajos