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@ARTICLE{Koch:41201,
      author       = {Koch, E. and Zeyher, R.},
      title        = {{R}enormalization of the electron-phonon coupling in the
                      one-band {H}ubbard model},
      journal      = {Physical review / B},
      volume       = {70},
      number       = {9},
      issn         = {1098-0121},
      address      = {College Park, Md.},
      publisher    = {APS},
      reportid     = {PreJuSER-41201},
      pages        = {094510},
      year         = {2004},
      note         = {Record converted from VDB: 12.11.2012},
      abstract     = {We investigate the effect of electronic correlations on the
                      coupling of electrons to Holstein phonons in the one-band
                      Hubbard model. We calculate the static electron-phonon
                      vertex within the linear response of Kotliar-Ruckenstein
                      slave bosons in the paramagnetic saddle-point approximation.
                      Within this approach the on-site Coulomb interaction U
                      strongly suppresses the coupling to Holstein phonons at low
                      temperatures. Moreover, the vertex function does not show
                      particularly strong forward scattering. Going to larger
                      temperatures kTsimilar tot we find that after an initial
                      decrease with U, the electron-phonon coupling starts to
                      increase with U, confirming a recent result of Cerruti,
                      Cappelluti, and Pietronero. We show that this behavior is
                      related to an unusual reentrant behavior from a phase
                      separated to a paramagnetic state upon decreasing the
                      temperature.},
      keywords     = {J (WoSType)},
      cin          = {IFF-TH-I},
      ddc          = {530},
      cid          = {I:(DE-Juel1)VDB30},
      pnm          = {Kondensierte Materie},
      pid          = {G:(DE-Juel1)FUEK242},
      shelfmark    = {Physics, Condensed Matter},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000224209200087},
      doi          = {10.1103/PhysRevB.70.094510},
      url          = {https://juser.fz-juelich.de/record/41201},
}