Transport evidence for the coexistence of the topological surface state and a two-dimensional electron gas in BiSbTe3 topological insulator

Fei-Xiang Xiang, Xiao-Lin Wang, Shi-Xue Dou

Topological insulators (TIs) are new insulating materials with exotic surface states, where the motion of charge carriers is described by the Dirac equations and their spins are lo…