A topological Dirac insulator in a quantum spin Hall phase

  title={A topological Dirac insulator in a quantum spin Hall phase},
  author={D. Hsieh and D. Qian and L. Wray and Y. Xia and Y. Hor and R. J. Cava and M Zahid Hasan},
  • D. Hsieh, D. Qian, +4 authors M Zahid Hasan
  • Published 2008
  • Physics, Medicine
  • Nature
  • When electrons are subject to a large external magnetic field, the conventional charge quantum Hall effect dictates that an electronic excitation gap is generated in the sample bulk, but metallic conduction is permitted at the boundary. Recent theoretical models suggest that certain bulk insulators with large spin–orbit interactions may also naturally support conducting topological boundary states in the quantum limit, which opens up the possibility for studying unusual quantum Hall-like… CONTINUE READING
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