Article,

Theory of glide symmetry protected helical edge states in a WTe$_2$ monolayer

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Phys. Rev. B, 107 (19): 195105 (Apr 11, 2023)
DOI: 10.1103/PhysRevB.107.195105

Abstract

Helical edge states in quantum spin Hall (QSH) materials are central building blocks of topological matter design and engineering. Despite their principal topological protection against elastic backscattering, the level of operational stability depends on manifold parameters such as the band gap of the given semiconductor system in the “inverted” regime, temperature, disorder, and crystal orientation. We theoretically investigate electronic and transport properties of QSH edge states in large gap 1-T′ WTe2 monolayers. We explore the impact of edge termination, disorder, temperature, and interactions on experimentally addressable edge state ob…(more)

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