Topological crystalline insulators in the SnTe material class.

  title={Topological crystalline insulators in the SnTe material class.},
  author={Timothy H. Hsieh and Hsin Lin and Junwei Liu and Wenhui Duan and Arun Bansil and Liang Fu},
  journal={Nature communications},
Topological crystalline insulators are new states of matter in which the topological nature of electronic structures arises from crystal symmetries. Here we predict the first material realization of topological crystalline insulator in the semiconductor SnTe by identifying its non-zero topological index. We predict that as a manifestation of this non-trivial topology, SnTe has metallic surface states with an even number of Dirac cones on high-symmetry crystal surfaces such as {001}, {110} and… CONTINUE READING
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