Z2 topological Anderson insulator

Ai Yamakage; Kentaro Nomura; Ken Ichiro Imura; Yoshio Kuramoto

doi:10.1088/1742-6596/400/4/042070

Z₂ topological Anderson insulator

Ai Yamakage, Kentaro Nomura, Ken Ichiro Imura, Yoshio Kuramoto

Materials Property Division

Research output: Contribution to journal › Conference article › peer-review

2 Citations (Scopus)

Abstract

Effects of disorder on a two-dimensional Z₂ topological insulator are studied numerically. We propose and study the phase diagram of a variant of Bernevig-Hughes-Zhang model, which takes account of the s_z non-conserving spin-orbit coupling. Using scaling analyses, we determine the phase boundary and the critical exponent characterizing the transition between metallic and the topologically insulating phases.

Original language	English
Article number	042070
Journal	Journal of Physics: Conference Series
Volume	400
Issue number	PART 4
DOIs	https://doi.org/10.1088/1742-6596/400/4/042070
Publication status	Published - 2012 Jan 1
Event	26th International Conference on Low Temperature Physics, LT 2011 - Beijing, China Duration: 2011 Aug 10 → 2011 Aug 17

ASJC Scopus subject areas

Physics and Astronomy(all)

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title = "Z2 topological Anderson insulator",

abstract = "Effects of disorder on a two-dimensional Z2 topological insulator are studied numerically. We propose and study the phase diagram of a variant of Bernevig-Hughes-Zhang model, which takes account of the sz non-conserving spin-orbit coupling. Using scaling analyses, we determine the phase boundary and the critical exponent characterizing the transition between metallic and the topologically insulating phases.",

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AU - Nomura, Kentaro

AU - Imura, Ken Ichiro

AU - Kuramoto, Yoshio

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N2 - Effects of disorder on a two-dimensional Z2 topological insulator are studied numerically. We propose and study the phase diagram of a variant of Bernevig-Hughes-Zhang model, which takes account of the sz non-conserving spin-orbit coupling. Using scaling analyses, we determine the phase boundary and the critical exponent characterizing the transition between metallic and the topologically insulating phases.

AB - Effects of disorder on a two-dimensional Z2 topological insulator are studied numerically. We propose and study the phase diagram of a variant of Bernevig-Hughes-Zhang model, which takes account of the sz non-conserving spin-orbit coupling. Using scaling analyses, we determine the phase boundary and the critical exponent characterizing the transition between metallic and the topologically insulating phases.

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