Moiré commensurability and the quantum anomalous Hall effect in twisted bilayer graphene on hexagonal boron nitride

The quantum anomalous Hall (QAH) effect is sometimes observed in twisted bilayer graphene (tBG) when it is nearly aligned with an encapsulating hexagonal boron nitride (hBN) layer. We propose that the appearance or absence of the QAH effect in individual devices could be related to commensurability...

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Veröffentlicht in:	Physical review. B 2021-02, Vol.103 (7), p.1, Article 075122
Hauptverfasser:	Shi, Jingtian, Zhu, Jihang, MacDonald, A. H.
Format:	Artikel
Sprache:	eng
Schlagworte:	anomalous Hall effect Band theory Bilayers Boron nitride Graphene MATERIALS SCIENCE mean field theory Percolation physics quantum anomalous Hall effect Quantum Hall effect superlattices
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