STM imaging of a bound state along a step on the surface of the topological insulator Bi 2 Te 3

  title={STM imaging of a bound state along a step on the surface of the topological insulator Bi 2 Te 3},
  author={Zhanybek Alpichshev and James G. Analytis and Jiun Haw Chu and Ian R. Fisher and Aharon Kapitulnik},
  journal={Physical Review B},
Detailed study of the LDOS associated with the surface-state-band near a step-edge of the strong topological-insulator Bi2Te3, reveal a one-dimensional bound state that runs parallel to the stepedge and is bound to it at some characteristic distance. This bound state is clearly observed in the bulk gap region, while it becomes entangled with the oscillations of the warped surface band at high energy, and with the valence band states near the Dirac point. Using the full effective Hamiltonian… Expand

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