%0 Journal Article
%A Sangiovanni, G.
%A Gunnarsson, O.
%A Koch, E.
%A Castellani, C.
%A Capone, M.
%T Electron-Phonon Interaction and Antiferromagnetic Correlations
%J Physical review letters
%V 97
%@ 0031-9007
%C College Park, Md.
%I APS
%M PreJuSER-52188
%P 046404
%D 2006
%Z Record converted from VDB: 12.11.2012
%X We study effects of the Coulomb repulsion on the electron-phonon interaction (EPI) in the Holstein-Hubbard model, using the antiferromagnetic (AF) dynamical mean-field approximation. AF 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. In contrast, the Coulomb interaction strongly suppresses EPI effects on phonons, but the suppression weakens with doping.
%K J (WoSType)
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000239377500047
%R 10.1103/PhysRevLett.97.046404
%U https://juser.fz-juelich.de/record/52188