Large quantum-spin-Hall gap in single-layer 1T′ WSe2

The current known two-dimensional topological insulators with small band gaps limit the potential for room temperature applications. Here, Chen et al. observe a sizable gap of 129 meV in a 1T'-WSe2 single layer grown on bilayer graphene with in-gap edge state near the layer boundary.

Bibliographic Details
Main Authors: P. Chen, Woei Wu Pai, Y.-H. Chan, W.-L. Sun, C.-Z. Xu, D.-S. Lin, M. Y. Chou, A.-V. Fedorov, T.-C. Chiang
Format: Article
Language:English
Published: Nature Publishing Group 2018-05-01
Series:Nature Communications
Online Access:https://doi.org/10.1038/s41467-018-04395-2