All Magic Angles in Twisted Bilayer Graphene are Topological

We show that the electronic structure of the low-energy bands in the small angle-twisted bilayer graphene consists of a series of semimetallic and topological phases. In particular, we are able to prove, using an approximate low-energy particle-hole symmetry, that the gapped set of bands that exist...

Ausführliche Beschreibung

Bibliographische Detailangaben

Veröffentlicht in:	Physical review letters 2019-07, Vol.123 (3), p.036401-036401, Article 036401
Hauptverfasser:	Song, Zhida, Wang, Zhijun, Shi, Wujun, Li, Gang, Fang, Chen, Bernevig, B Andrei
Format:	Artikel
Sprache:	eng
Schlagworte:	Band theory Banded structure Bilayers Brillouin zones Collapse Computing time Electronic structure Energy Energy bands Graphene Symmetry Topology Unit cell
Online-Zugang:	Volltext
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!