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@ARTICLE{Peters:829461,
      author       = {Peters, L. and Şaşıoğlu, E. and Rossen, Siebe and
                      Friedrich, Christoph and Blügel, S. and Katsnelson, M. I.},
      title        = {{N}onconventional screening of the {C}oulomb interaction in
                      {F}ex{O}y clusters: {A}n ab initio study},
      journal      = {Physical review / B},
      volume       = {95},
      number       = {15},
      issn         = {2469-9950},
      address      = {Woodbury, NY},
      publisher    = {Inst.},
      reportid     = {FZJ-2017-03160},
      pages        = {155119},
      year         = {2017},
      abstract     = {From microscopic point-dipole model calculations of the
                      screening of the Coulomb interaction in nonpolar systems by
                      polarizable atoms, it is known that screening strongly
                      depends on dimensionality. For example, in one-dimensional
                      systems, the short-range interaction is screened, while the
                      long-range interaction is antiscreened. This antiscreening
                      is also observed in some zero-dimensional structures, i.e.,
                      molecular systems. By means of ab initio calculations in
                      conjunction with the random-phase approximation (RPA) within
                      the FLAPW method, we study screening of the Coulomb
                      interaction in FexOy clusters. For completeness, these
                      results are compared with their bulk counterpart magnetite.
                      It appears that the on-site Coulomb interaction is very well
                      screened both in the clusters and bulk. On the other hand,
                      for the intersite Coulomb interaction, the important
                      observation is made that it is almost constant throughout
                      the clusters, while for the bulk it is almost completely
                      screened. More precisely and interestingly, in the clusters
                      antiscreening is observed by means of ab initio
                      calculations.},
      cin          = {IAS-1 / PGI-1 / JARA-FIT / JARA-HPC},
      ddc          = {530},
      cid          = {I:(DE-Juel1)IAS-1-20090406 / I:(DE-Juel1)PGI-1-20110106 /
                      $I:(DE-82)080009_20140620$ / $I:(DE-82)080012_20140620$},
      pnm          = {142 - Controlling Spin-Based Phenomena (POF3-142) / 143 -
                      Controlling Configuration-Based Phenomena (POF3-143)},
      pid          = {G:(DE-HGF)POF3-142 / G:(DE-HGF)POF3-143},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000401764500001},
      doi          = {10.1103/PhysRevB.95.155119},
      url          = {https://juser.fz-juelich.de/record/829461},
}