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Title: Quantum spin Hall states in graphene interacting with WS{sub 2} or WSe{sub 2}

Journal Article · · Applied Physics Letters
DOI:https://doi.org/10.1063/1.4903895· OSTI ID:22395498
; ;  [1]
  1. Bremen Center for Computational Materials Science, University of Bremen, Am Falturm 1, 28359 Bremen (Germany)

In the framework of first-principles calculations, we investigate the structural and electronic properties of graphene in contact with as well as sandwiched between WS{sub 2} and WSe{sub 2} 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.

OSTI ID:
22395498
Journal Information:
Applied Physics Letters, Vol. 105, Issue 23; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
Country of Publication:
United States
Language:
English