Quantum spin Hall effect in two-dimensional transition metal dichalcogenides
Quantum spin Hall effect in two-dimensional transition metal dichalcogenides
We report a new class of large-gap quantum spin Hall insulators in two-dimensional transition metal dichalcogenides, namely, MX$_2$ with M=(Mo, W) and X=(S, Se, and Te), whose topological electronic properties are highly tunable by external electric field. We propose a novel topological field effect transistor made of these atomic layer …