Tricrystal Phase Sensitive Characterization of the Monopole Superconductor

Monopole superconductors, which can potentially be realized in doped magnetic Weyl semimetal materials, are characterized by exotic monopole harmonic symmetry of its superconducting pairing order. Because the U(1) phase of its pairing order is topologically frustrated, we study the tricrystal phase sensitive characterization of the monopole pairing to distinguish it from known unconventional pairing symmetry.