Effect of Impurities with Internal Structure on Multiband Superconductors - Possible Enhancement of Transition Temperature -

Mikito Koga, Masashige Matsumoto, Hiroaki Kusunose

We study inelastic (dynamical) impurity scattering effects in two-band superconductors with the same ($s_{++}$ wave) or different ($s_{\pm }$ wave) sign order parameters. We focus on…