Eliashberg-type equations for correlated superconductors

Abstract

The derivation of the Eliashberg -- type equations for a superconductor with strong correlations and electron--phonon interaction has been presented. The proper account of short range Coulomb interactions results in a strongly anisotropic equations. Possible symmetries of the order parameter include s, p and d wave. We found the carrier concentration dependence of the coupling constants corresponding to these symmetries. At low hole doping the d-wave component is the largest one.

RevTeX, 18 pages, 5 ps figures added at the end of source file, to be published in Phys.Rev. B, contact: [email protected]

References in corpus (3)

• The Electron-Phonon Interaction in the Presence of Strong Correlations
• Competition between electron-phonon attraction and weak Coulomb repulsion
• Exchange Enhancement of the Electron-Phonon Pair Interaction

Cited by in corpus (1)

• Electronic structure, electron-phonon coupling and superconductivity in noncentrosymmetric ThCoC2 from ab initio calculations