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Quantum spin Hall states in graphene interacting with WS2 or WSe2
Journal article   Peer reviewed

Quantum spin Hall states in graphene interacting with WS2 or WSe2

T. P. Kaloni, L. Kou, T. Frauenheim and U. Schwingenschloegl
Applied physics letters, Vol.105(23)
08/12/2014
DOI: https://doi.org/10.1063/1.4903895

Abstract

Physical Sciences Physics Physics, Applied Science & Technology
In the framework of first-principles calculations, we investigate the structural and electronic properties of graphene in contact with as well as sandwiched between WS2 and WSe2 monolayers. We report the modification of the band characteristics due to the interaction at the interface and demonstrate that the presence of the dichalcogenide results in quantum spin Hall states in the absence of a magnetic field. (C) 2014 AIP Publishing LLC.

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