Topological crystalline insulator (Pb,Sn)Te: Surface states and their spin polarization

Using a tight-binding approach we study theoretically the nature of surface states in Pb${}_{0.4}$Sn${}_{0.6}$Te---the recently discovered topological crystalline insulator. Apart from the (001) surface states previously studied, two other surface families, ${011}$ and ${111}$, in which the mirror s... View More