Effect of hybridization in the superconductivity of a two-band system: Strong coupling limit

Abstract

In this work we have considered a two dimensional Hubbard model to study the effect of the hybridization on the superconductivity. Considering a d-wave superconducting gap, we have obtained the critical temperature Tc for different hybridization strengths. The results show that for a fixed value of the hybridization strength V, and the attractive potential U, the gap increases for low temperatures, and diminishes as the temperatures increase.