The charge carrier density effect on the superconductor parameters in a two-band model

Abstract The effect of the mobile charge concentration on the electron–phonon coupling constant, the band overlapping parameter and the isotopic coefficient is studied for a two-dimensional superconductor in a two-band model. This model is applied to describe the relation between the superconducting transition and the carrier density in CuO 2 layered superconductors, within the BCS framework. The experimental data for doping-induced charge in layered Hg-based cuprates are used to obtain numerical results.