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Superconductivity in Doped Quantum Anomalous Hall Insulators

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Abstract

We study theoretically the superconductivity in doped quantum anomalous Hall insulators based on the Bogoliubov-de Gennes equations. The topological invariant is defined through which the phase diagram is obtained self-consistently. The energy spectrum and the excitations of the possible Majorana Fermions in each phase are discussed. The local density of states is studied. We propose that the zero energy peaks in the local density of states is not sufficient to identify the Majorana Fermions.

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Funding

This work was supported by the NSFC under Grant no. 245 11374005.

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Authors and Affiliations

  1. College of Science, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China

    Yue Zheng & Tao Zhou

  2. Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, and School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou, 510006, China

    Tao Zhou

Authors
  1. Yue Zheng
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  2. Tao Zhou
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Corresponding author

Correspondence to Tao Zhou.

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Zheng, Y., Zhou, T. Superconductivity in Doped Quantum Anomalous Hall Insulators. J Supercond Nov Magn 32, 1639–1644 (2019). https://doi.org/10.1007/s10948-018-4895-1

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  • DOI: https://doi.org/10.1007/s10948-018-4895-1

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