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Orth CP, Sekera T, Bruder C, et al. The topological Anderson insulator phase in the Kane-Mele model. Sci Rep. 2016;6:24007doi: 10.1038/srep24007.
Orth, C. P., Sekera, T., Bruder, C., & Schmidt, T. L. (2016). The topological Anderson insulator phase in the Kane-Mele model. Scientific reports, 624007. https://doi.org/10.1038/srep24007
Orth, Christoph P, et al. "The topological Anderson insulator phase in the Kane-Mele model." Scientific reports vol. 6 (2016): 24007. doi: https://doi.org/10.1038/srep24007
Orth CP, Sekera T, Bruder C, Schmidt TL. The topological Anderson insulator phase in the Kane-Mele model. Sci Rep. 2016 Apr 05;6:24007. doi: 10.1038/srep24007. PMID: 27045779; PMCID: PMC4820742.
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Sci Rep. 2016 Apr 05;6:24007. doi: 10.1038/srep24007.

The topological Anderson insulator phase in the Kane-Mele model.

Scientific reports

Christoph P Orth, Tibor Sekera, Christoph Bruder, Thomas L Schmidt

Affiliations

  1. Department of Physics, University of Basel, Klingelbergstrasse 82, 4056 Basel, Switzerland.
  2. Physics and Materials Science Research Unit, University of Luxembourg, L-1511 Luxembourg.

PMID: 27045779 PMCID: PMC4820742 DOI: 10.1038/srep24007

Abstract

It has been proposed that adding disorder to a topologically trivial mercury telluride/cadmium telluride (HgTe/CdTe) quantum well can induce a transition to a topologically nontrivial state. The resulting state was termed topological Anderson insulator and was found in computer simulations of the Bernevig-Hughes-Zhang model. Here, we show that the topological Anderson insulator is a more universal phenomenon and also appears in the Kane-Mele model of topological insulators on a honeycomb lattice. We numerically investigate the interplay of the relevant parameters, and establish the parameter range in which the topological Anderson insulator exists. A staggered sublattice potential turns out to be a necessary condition for the transition to the topological Anderson insulator. For weak enough disorder, a calculation based on the lowest-order Born approximation reproduces quantitatively the numerical data. Our results thus considerably increase the number of candidate materials for the topological Anderson insulator phase.

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