Quantum spin Hall states in graphene interacting with WS${}_2$ or WSe${}_2$

Abstract

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${}_2$ and WSe${}_2$ monolayers. We report the modification of the band characteristics due to the interaction at the interface and demonstrate that the presence of the dichalcogenides results in quantum spin Hall states in the absence of a magnetic field.

References in corpus (10)

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Cited by in corpus (9)

• Proximity effects in bilayer graphene on monolayer WSe${}_2$: Field-effect spin-valley locking, spin-orbit valve, and spin transistor
• Twist-angle dependence of the proximity spin-orbit coupling in graphene on transition-metal dichalcogenides
• Quantum Anomalous Hall Effects in Graphene from Proximity-Induced Uniform and Staggered Spin-Orbit and Exchange Coupling
• Magnetotransport in heterostructures of transition metal dichalcogenides and graphene
• ${\mathbb{Z}}_2$ invariance of Germanene on MoS${}_2$ from first principles
• Tuning electronic properties and contact type in van der Waals heterostructures of bilayer SnS and graphene
• Topological phase in oxidized zigzag stanene nanoribbons
• Quantum spin Hall phase in multilayer graphene
• Magnetotransport in graphene/Pb0.24Sn0.76Te heterostructures: finding a way to avoid catastrophe