Eliashberg Analysis of Temperature Dependent Pairing Mechanism in d-Wave Superconductors: Application to High Temperature Superconductivity

Abstract: Results are presented for the temperature and frequency dependence of the real and imaginary parts of the diagonal self energy for a d-wave superconductor. An Eliashberg analysis, which has been successful in recent fitting of superconductor-insulator-superconductor tunnel junction conductances for BiSrCaCuO (Bi-2212), is extended to finite temperatures. The effect of the temperature dependence of the 40 meV spin resonance mode, measured in inelastic neutron scattering (INS) in Bi-2212, on the finite temperature self energies is investigated.