Correlation-driven phase transition in a Chern insulator
arXiv:1312.6771 · doi:10.1103/PhysRevB.88.165132
Abstract
The phase transition driven by electron correlations in a Chern insulator is investigated within the dynamical mean-field theory. The Chern insulator is described by the Haldane model and the electron correlations are incorporated by introducing the short-range interaction between the itinerant electrons and localized fermions. In the preservation of the inversion symmetry, the electron correlations drive the system from the Chern insulator to a renormalized pseudogap metal, and then to the topologically trivial Mott insulator. When the inversion symmetry is broken, a charge ordering and a nontrivial Chern topological invariant coexist.
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Cited by in corpus (10)
- Quantum cluster approach to the spinful Haldane-Hubbard model
- Charge density wave and charge pump of interacting fermions in circularly shaken hexagonal optical lattices
- Topological Green function of interacting systems
- Extended Falicov-Kimball model: Exact solution for finite temperatures
- Temperature-driven gapless topological insulator
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