Large quantum-spin-Hall gap in single-layer 1T′ WSe2
P. Chen, Woei Wu Pai, Y.-H. Chan and 6 more
Nature Communications · 2018
doi:10.1038/s41467-018-04395-2 (opens in a new tab)
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Abstract
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.
Abstract licence: CC BY-NC-ND
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