Time-reversal symmetry breaking superconductivity in three-dimensional Dirac semimetallic silicides
Time-reversal symmetry breaking superconductivity in three-dimensional Dirac semimetallic silicides
Superconductors with broken time-reversal symmetry represent arguably one of the most promising venues for realizing highly sought-after topological superconductivity that is vital to fault-tolerant quantum computation. Here, by using extensive muon-spin relaxation and rotation measurements, we report that the isostructural silicide superconductors (Ta, Nb)OsSi spontaneously break time-reversal symmetry at the …