Effects of Nonmagnetic Impurities on Nonequilibrium Phase Transitions in Microwave-Driven Superconductors
We investigate the nonequilibrium steady states of a microwave-driven BCS superconductor in the presence of nonmagnetic impurity scattering and energy relaxation. Using the Floquet-Nambu-Keldysh Green's function method together with the self-consistent Born approximation, we self-consistently determine the superconduct...