Observation of Coulomb gap in the quantum spin Hall candidate single-layer 1T’-WTe2Observation of Coulomb gap in the quantum spin Hall candidate single-layer 1<i>T</i>’-WTe<sub>2</sub>, Published online: 04 October 2018; doi:10.1038/s41467-018-06635-xThe conductance from bulk bands in a topological insulator usually blurs effects arising from edge states. Here, Song et al. report a Coulomb gap opened by electron–electron interactions, which effectively suppress the bulk conductance and promote observation of topological edge states in the single-layer 1T’-WTe2.

Published in: "Nature Communications".