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Topological superconductors in correlated topological insulators on the honeycomb lattice

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Abstract

The paper realizes a topological superconductor (TSC) in correlated topological insulator – the interacting spinful Haldane model. The electrons on the Haldane model with on-site attractive interaction are studied based on mean field theory and random-phase-approximation (RPA) approach. In the intermediate interaction region, the ground state is found to be a TSC with the Chern number ±2. In addition, the edge states and the zero modes of the π-flux are discussed.

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Authors and Affiliations

  1. Department of Physics, Beijing Normal University, Beijing, 100875, P.R. China

    Ying Liang, Jing He, Ya-Jie Wu, Ying-Xue Zhu & Su-Peng Kou

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  1. Ying Liang
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  2. Jing He
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  3. Ya-Jie Wu
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  4. Ying-Xue Zhu
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  5. Su-Peng Kou
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Correspondence to Su-Peng Kou.

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Liang, Y., He, J., Wu, YJ. et al. Topological superconductors in correlated topological insulators on the honeycomb lattice. Eur. Phys. J. B 86, 466 (2013). https://doi.org/10.1140/epjb/e2013-40521-5

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  • DOI: https://doi.org/10.1140/epjb/e2013-40521-5

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