Electron-phonon interaction and antiferromagnetic correlations

Abstract

We study effects of the Coulomb repulsion on the electron-phonon interaction (EPI) in a model of cuprates at zero and finite doping. We find that antiferromagnetic correlations strongly enhance EPI effects on the electron Green's function with respect to the paramagnetic correlated system, but the net effect of the Coulomb interaction is a moderate suppression of the EPI. Doping leads to additional suppression, due to reduced antiferromagnetic correlations. In contrast, the Coulomb interaction strongly suppresses EPI effects on phonons, but the suppression weakens with doping.

4 pages and 5 figures

References in corpus (2)

• Electron-phonon interaction in the t-J model
• Apparent electron-phonon interaction in strongly correlated systems

Cited by in corpus (11)

• Sum-rules and bath-parametrization for quantum cluster theories
• Interplay between electron-phonon and Coulomb interactions in cuprates
• Temperature dependence of the angle resolved photoemission spectra in the undoped cuprates: self-consistent approach to the t-J-Holstein model
• Bipolaron in the t-J model coupled to longitudinal and transverse quantum lattice vibrations
• Polaronic features in the optical properties of the Holstein-t-J model
• Charge instabilities and electron-phonon interaction in the Hubbard-Holstein model
• Localization of strongly correlated electrons as Jahn-Teller polarons in manganites
• Renormalized quasiparticles in antiferromagnetic states of the Hubbard model
• Sum rules and vertex corrections for electron-phonon interactions
• Renormalization of the quasiparticle hopping integrals by spin interactions in layered copper oxides
• Finite temperature spectral function of a hole in a quantum antiferromagnet and role of phonons