We consider a model for superconductivity in a two-band superconductor,
having an anisotropic electronic structure made of two partially overlapping
bands with a first hole-like and a second electron-like fermi surface. In this
pairing scenario, driven by the interplay between interband Vi,jâ and
intraband Vi,iâ pairing terms, we have solved the two gap equations at the
critical temperature T=Tcâ and calculate Tcâ and the chemical potential
Ό as a function of the number of carriers n for various values of pairing
interactions, V1,1â, V2,2â, and V1,2â. The results show the
complexity of the physics of condensates with multiple order parameters with
the chemical potential near band edges.Comment: 6 pages, 2 figure