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arXiv · 1709.01101

Generic phase diagram for Weyl superconductivity in mirror-symmetric superconductors

Ryo Okugawa·Takehito Yokoyama
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Abstract

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.

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Ryo Okugawa, Takehito Yokoyama. 2018-02-16. Generic phase diagram for Weyl superconductivity in mirror-symmetric superconductors. https://doi.org/10.1103/physrevb.97.060504

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