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@ARTICLE{Thiess:10052,
      author       = {Thiess, A. and Mokrousov, Y. and Heinze, S.},
      title        = {{C}ompeting magnetic anisotropies in atomic-scale
                      junctions},
      journal      = {Physical review / B},
      volume       = {81},
      number       = {5},
      issn         = {1098-0121},
      address      = {College Park, Md.},
      publisher    = {APS},
      reportid     = {PreJuSER-10052},
      pages        = {054433},
      year         = {2010},
      note         = {Financial support of the Stifterverband fur die Deutsche
                      Wissenschaft is gratefully acknowledged. We also thank
                      Phivos Mavropoulos for discussions.},
      abstract     = {Using first-principles calculations, we study the magnetism
                      of 5d transition-metal atomic junctions including structural
                      relaxations and spin-orbit coupling. Upon stretching
                      monoatomic chains of W, Ir, and Pt suspended between two
                      leads, we find the development of strong magnetism and large
                      values of the magnetocrystalline anisotropy energy (MAE) of
                      up to 30 meV per chain atom. We predict that switches of the
                      easy magnetization axis of the nanocontacts upon elongation
                      should be observable by ballistic anisotropic
                      magnetoresistance measurements. Due to the different local
                      symmetry, the contributions to the MAE of the central chain
                      atoms and chain atoms in the vicinity of the leads can have
                      opposite signs which reduces the total MAE. We demonstrate
                      that this effect occurs independent of the chain length or
                      geometry of the electrodes.},
      keywords     = {J (WoSType)},
      cin          = {IFF-1 / IAS-1},
      ddc          = {530},
      cid          = {I:(DE-Juel1)VDB781 / I:(DE-Juel1)IAS-1-20090406},
      pnm          = {Kondensierte Materie},
      pid          = {G:(DE-Juel1)FUEK414},
      shelfmark    = {Physics, Condensed Matter},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000274998000083},
      doi          = {10.1103/PhysRevB.81.054433},
      url          = {https://juser.fz-juelich.de/record/10052},
}