Realisation of topological zero-energy mode in bilayer graphene in zero magnetic field

Abstract Bilayer graphene (BLG) gapped by a vertical electric field represents a valley-symmetry-protected topological insulating state. Emergence of a new topological zero-energy mode has been proposed in BLG at a boundary between regions of inverted band gaps induced by two oppositely polarized ve...

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Bibliographic Details
Main Authors: Janghee Lee, Kenji Watanabe, Takashi Taniguchi, Hu-Jong Lee
Format: Article
Language:English
Published: Nature Publishing Group 2017-07-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-017-06902-9