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@ARTICLE{Liebsch:18489,
      author       = {Liebsch, A.},
      title        = {{H}igh-energy pseudogap induced by {H}und coupling in a
                      degenerate {H}ubbard model},
      journal      = {Physical review / B},
      volume       = {84},
      number       = {18},
      issn         = {1098-0121},
      address      = {College Park, Md.},
      publisher    = {APS},
      reportid     = {PreJuSER-18489},
      pages        = {180505},
      year         = {2011},
      note         = {Record converted from VDB: 12.11.2012},
      abstract     = {Hund coupling in the degenerate five-band Hubbard model
                      near n = 6 occupancy is shown to give rise to a significant
                      depletion of spectral weight above the Fermi level.
                      Calculations within dynamical mean-field theory combined
                      with exact diagonalization reveal that this pseudogap is
                      associated with a collective mode in the self-energy caused
                      by spin fluctuations. The pseudogap is remarkably stable
                      over a wide range of Coulomb and exchange energies, but
                      disappears for weak Hund coupling. The implications of this
                      phenomenon for optical spectra of iron pnictides are
                      discussed.},
      keywords     = {J (WoSType)},
      cin          = {IAS-1 / PGI-1},
      ddc          = {530},
      cid          = {I:(DE-Juel1)IAS-1-20090406 / I:(DE-Juel1)PGI-1-20110106},
      pnm          = {Grundlagen für zukünftige Informationstechnologien},
      pid          = {G:(DE-Juel1)FUEK412},
      shelfmark    = {Physics, Condensed Matter},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000296911600002},
      doi          = {10.1103/PhysRevB.84.180505},
      url          = {https://juser.fz-juelich.de/record/18489},
}