Correlation effects in two-dimensional topological insulators.

Journal of physics. Condensed matter : an Institute of Physics journal

PubMedID: 23470861

Hohenadler M, Assaad FF. Correlation effects in two-dimensional topological insulators. J Phys Condens Matter. 2013;25(14):143201.
Topological insulators have become one of the most active research areas in condensed matter physics. This article reviews progress on the topic of electronic correlation effects in the two-dimensional case, with a focus on systems with intrinsic spin-orbit coupling and numerical results. Topics addressed include an introduction to the noninteracting case, an overview of theoretical models, correlated topological band insulators, interaction-driven phase transitions, topological Mott insulators and fractional topological states, correlation effects on helical edge states, and topological invariants of interacting systems.