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@ARTICLE{Kovacik:279767,
      author       = {Kovacik, Roman and Mavropoulos, Phivos and Blügel, Stefan},
      title        = {{S}pin transport and spin-caloric effects in
                      ({C}r,{Z}n){T}e half-metallic nanostructures: {E}ffect of
                      spin disorder at elevated temperatures from first
                      principles},
      journal      = {Physical review / B},
      volume       = {91},
      number       = {1},
      issn         = {1098-0121},
      address      = {College Park, Md.},
      publisher    = {APS},
      reportid     = {FZJ-2015-07649},
      pages        = {014421},
      year         = {2015},
      abstract     = {An important contribution to the thermoelectric and
                      spin-caloric transport properties in magnetic materials at
                      elevated temperatures is the formation of a spin-disordered
                      state due to local moment fluctuations. This effect has not
                      been largely investigated so far. We focus on various
                      magnetic nanostructures of CrTe in the form of thin layers
                      or nanowires embedded in ZnTe matrix, motivated by the
                      miniaturization of spintronics devices and by recent
                      suggestions that magnetic nanostructures can lead to
                      extraordinary thermoelectric effects due to quantum
                      confinement. The electronic structure of the studied systems
                      is calculated within the multiple scattering screened
                      Korringa-Kohn-Rostoker Green function (KKR-GF) framework.
                      The Monte Carlo method is used to simulate the magnetization
                      in the temperature induced spin disorder. The transport
                      properties are evaluated from the transmission probability
                      obtained using the Baranger-Stone approach within the KKR-GF
                      framework. We find qualitative and quantitative changes in
                      the thermoelectric and spin-caloric coefficients when spin
                      disorder is included in the calculation. Furthermore, we
                      show that substitutional impurities in CrTe nanowires could
                      considerably enhance the Seebeck coefficient and the
                      thermoelectric figure of merit.},
      cin          = {IAS-1 / PGI-1 / JARA-FIT},
      ddc          = {530},
      cid          = {I:(DE-Juel1)IAS-1-20090406 / I:(DE-Juel1)PGI-1-20110106 /
                      $I:(DE-82)080009_20140620$},
      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:000351765600004},
      doi          = {10.1103/PhysRevB.91.014421},
      url          = {https://juser.fz-juelich.de/record/279767},
}