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@ARTICLE{Zhang:824878,
      author       = {Zhang, G. and Gorelov, E. and Sarvestani, E. and Pavarini,
                      Eva},
      title        = {{F}ermi {S}urface of {S}r$_{2}${R}u{O}$_{4}$:
                      {S}pin-{O}rbit and {A}nisotropic {C}oulomb {I}nteraction
                      {E}ffects},
      journal      = {Physical review letters},
      volume       = {116},
      issn         = {0031-9007},
      address      = {College Park, Md.},
      publisher    = {APS},
      reportid     = {FZJ-2016-07380},
      pages        = {106402},
      year         = {2016},
      abstract     = {The topology of the Fermi surface of Sr2RuO4 is well
                      described by local-density approximation calculations with
                      spin-orbit interaction, but the relative size of its
                      different sheets is not. By accounting for many-body effects
                      via dynamical mean-field theory, we show that the standard
                      isotropic Coulomb interaction alone worsens or does not
                      correct this discrepancy. In order to reproduce experiments,
                      it is essential to account for the Coulomb anisotropy. The
                      latter is small but has strong effects; it competes with the
                      Coulomb-enhanced spin-orbit coupling and the isotropic
                      Coulomb term in determining the Fermi surface shape. Its
                      effects are likely sizable in other correlated multiorbital
                      systems. In addition, we find that the low-energy
                      self-energy matrix—responsible for the reshaping of the
                      Fermi surface—sizably differs from the static Hartree-Fock
                      limit. Finally, we find a strong spin-orbital entanglement;
                      this supports the view that the conventional description of
                      Cooper pairs via factorized spin and orbital part might not
                      apply to Sr2RuO4.},
      cin          = {IAS-3 / JARA-HPC},
      ddc          = {550},
      cid          = {I:(DE-Juel1)IAS-3-20090406 / $I:(DE-82)080012_20140620$},
      pnm          = {144 - Controlling Collective States (POF3-144) /
                      Order-disorder transitions in strongly correlated systems
                      $(jiff46_20101101)$ / Multiplet effects in strongly
                      correlated materials $(jiff41_20091101)$ / Multiplet effects
                      in strongly correlated materials $(jara0050_20130501)$},
      pid          = {G:(DE-HGF)POF3-144 / $G:(DE-Juel1)jiff46_20101101$ /
                      $G:(DE-Juel1)jiff41_20091101$ /
                      $G:(DE-Juel1)jara0050_20130501$},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000371721600009},
      pubmed       = {pmid:27015496},
      doi          = {10.1103/PhysRevLett.116.106402},
      url          = {https://juser.fz-juelich.de/record/824878},
}