Anomalous finite size effects on surface states in the topological insulator Bi 2 Se 3

@inproceedings{Linder2009AnomalousFS,
  title={Anomalous finite size effects on surface states in the topological insulator Bi 2 Se 3},
  author={Jacob Linder and Takehito Yokoyama and Asle Sudb{\o}},
  year={2009}
}
We study how the surface states in the strong topological insulator ${\text{Bi}}_{2}{\text{Se}}_{3}$ are influenced by finite size effects and compare our results with those recently obtained for two-dimensional topological insulator HgTe. We demonstrate two important distinctions: (i) contrary to HgTe, the surface states in ${\text{Bi}}_{2}{\text{Se}}_{3}$ display a remarkable robustness towards decreasing the width $L$ down to a few nm thus ensuring that the topological surface states remain… CONTINUE READING

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