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@ARTICLE{Mavropoulos:9515,
      author       = {Mavropoulos, Ph. and Lounis, S. and Blügel, S.},
      title        = {{E}xchange coupling in transition-metal nanoclusters on
                      {C}u(001) and {C}u(111) surfaces},
      journal      = {Physica status solidi / B},
      issn         = {0370-1972},
      address      = {Weinheim},
      publisher    = {Wiley-VCH},
      reportid     = {PreJuSER-9515},
      pages        = {1187 - 1196},
      year         = {2010},
      note         = {We are indebted to Ondrej Sipr for sending us detailed
                      results on the Co/Au and Co/Pt systems, and to Peter
                      Dederichs and Yuriy Molcrousov for enlightening discussions.
                      Financial support from the Deutsche Forschungsgemeinschaft
                      (DFG), within the Priority Programme 'Clusters in contact
                      with surfaces: electronic structure and magnetism'
                      (SPP-1153), is gratefully acknowledged.},
      abstract     = {We present results of density-functional calculations on
                      the magnetic properties of Cr, Mn, Fe and Co nanoclusters
                      (1-9 atoms large) supported on Cu(001) and Cu(111). The
                      inter-atomic exchange coupling is found to depend on
                      competing mechanisms, namely ferromagnetic double exchange
                      and antiferromagnetic kinetic exchange.
                      Hybridization-induced broadening of the resonances is shown
                      to be important for the coupling strength. The cluster shape
                      is found to affect the coupling via a mechanism that
                      comprises the different orientation of the atomic d-orbitals
                      and the strength of nearest-neighbour hopping. Especially in
                      Fe clusters, a correlation of binding energy and exchange
                      coupling is also revealed. (C) 2010 WILEY-VCH Verlag GmbH
                      $\&$ Co. KGaA, Weinheim},
      keywords     = {J (WoSType)},
      cin          = {IAS-1 / IFF-1 / JARA-FIT / JARA-HPC},
      ddc          = {530},
      cid          = {I:(DE-Juel1)IAS-1-20090406 / I:(DE-Juel1)VDB781 /
                      $I:(DE-82)080009_20140620$ / I:(DE-Juel1)VDB1346},
      pnm          = {Grundlagen für zukünftige Informationstechnologien},
      pid          = {G:(DE-Juel1)FUEK412},
      shelfmark    = {Physics, Condensed Matter},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000278344100025},
      doi          = {10.1002/pssb.200945535},
      url          = {https://juser.fz-juelich.de/record/9515},
}