Impurity effects on the Tc suppression in the pair tunneling mechanism for high-Tc superconductors

We consider the impurity effects on the Tc suppression of the d-wave state in Anderson's Pair Tunneling Mechanism for High-Tc superconductors, including explicitly strong inelastic scattering (Σ″ to approximately α(w+πkBT)). Using a self-consistent T-matrix approximation, we solve the gap equation of the Pair Tunneling Mechanism with non-magnetic impurity in the plane, with and without the inelastic scattering. As expected, the effect of impurities for the Tc suppression is strongly reduced by inelastic scattering and the results can fit most of experimental data with impurities by varying impurity scattering strength.