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cond-mat.mes-hall2014★ 21 cited
One-dimensional topological insulator: a model for studying finite-size effects in topological insulator thin films
Mayuko Okamoto, Yositake Takane, Ken-Ichiro Imura
As a model for describing finite-size effects in topological insulator thin films, we study a one-dimensional (1D) effective model of a topological insulator (TI). Using this effec…
cond-mat.mes-hall2012★ 51 cited
Finite-size energy gap in weak and strong topological insulators
Ken-Ichiro Imura, Mayuko Okamoto, Yukinori Yoshimura +2
The non-trivialness of a topological insulator (TI) is characterized either by a bulk topological invariant or by the existence of a protected metallic surface state. Yet, in reali…