An isolated Dirac cone on the surface of ternary tetradymite-like topological insulators

H. Lin, Tanmoy Das, L. A. Wray +3

We have extended the search for topological insulators to the ternary tetradymite-like compounds M2X2Y (M = Bi or Sb; X and Y = S, Se or Te), which are variations of the well-known…