Generic phase diagram for Weyl superconductivity in mirror-symmetric superconductors

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We study topological phase transitions in three-dimensional odd-parity or noncentrosymmetric superconductors with mirror symmetry when time-reversal symmetry is broken. We construct a generic phase diagram for Weyl superconductivity in the mirror-symmetric superconductors. It is shown that Weyl superconductivity generally emerges between the trivial and the topological crystalline superconductor phases. We demonstrate how a trajectory of the Weyl nodes determines the change in mirror Chern numbers in the topological phase transition. We also discuss a relationship between particle-hole symmetry and the trajectory of the Weyl nodes which realizes the topological crystalline superconductor phase.

11 pages, 4 figures (including Supplemental Material)

Journal

  • Physical Review B

    Physical Review B 97 (6), 2018-02-15

    American Physical Society (APS)

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