Eliashberg equations with a pair coupling potential constructed from screened fermion-fermion interactions arising from the strong-correlation energy U are solved to obtain the superconducting gap, the quasiparticle density of states in the superconducting state, and the transition temperature as a function of the band parameters in strongly correlated electron materials. This analysis allows us to establish the conditions of the electronic structure for obtaining coupling and superconductivity in these materials.
|Journal||Journal of Physics: Condensed Matter|
|Publication status||Published - 1 Jan 1994|
Puig-Puig, L., Lopez-Aguilar, F., & Costa-Quintana, J. (1994). Eliashberg equations in strong-correlation systems. Journal of Physics: Condensed Matter, 6, 4929-4936. . https://doi.org/10.1088/0953-8984/6/26/014