Modulation of electronic properties from stacking orders and spin-orbit coupling for 3R-type MoS2.

ABSTRACT: Two-dimensional crystals stacked by van der Waals coupling, such as twisted graphene and coupled graphene-BN layers with unusual phenomena have been a focus of research recently. As a typical representative, with the modulation of structural symmetry, stacking orders and spin-orbit coupling, transitional metal dichalcogenides have shown a lot of fascinating properties. Here we reveal the effect of stacking orders with spin-orbit coupling on the electronic properties of few-layer 3R-type MoS2 by first principles methods. We analyze the splitting of states at the top of valence band and the bottom of conduction band, following the change of stacking order. We find that regardless of stacking orders and layers' number, the spin-up and spin-down channels are evidently separated and can be as a

SUBMITTER: Fan X 

PROVIDER: S-EPMC4823783 | biostudies-literature | 2016 Apr

REPOSITORIES: biostudies-literature