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@ARTICLE{Picozzi:52861,
      author       = {Picozzi, S. and Lezaic, M. and Blügel, S.},
      title        = {{E}lectronic structure and exchange constants in magnetic
                      semiconductor digital alloys: chemical and band-gap effects},
      journal      = {Physica status solidi / A},
      volume       = {203},
      issn         = {0031-8965},
      address      = {Weinheim},
      publisher    = {Wiley-VCH},
      reportid     = {PreJuSER-52861},
      pages        = {2738 - 2745},
      year         = {2006},
      note         = {Record converted from VDB: 12.11.2012},
      abstract     = {First-principles simulations have been performed for
                      [001]-ordered Mn/Ge and Mn/GaAs "digital alloys", focusing
                      on the effects of (i) a larger band-gap and (ii) a different
                      semiconducting host on the electronic structure of the
                      magnetic semiconductors of interest. Our results for the
                      exchange constants in Mn/Ge, evaluated using a frozen-magnon
                      scheme, show that a larger band-gap tends to give a stronger
                      nearest-neighbor ferromagnetic coupling and an overall
                      enhanced in-plane ferromagnetic coupling even for
                      longer-ranged coupling constants. As for the chemical
                      effects on the exchange constants, we show that Mn/GaAs
                      shows a smaller nearest-neighbor ferromagnetic coupling than
                      Mn/Ge, but exchange constants for higher Mn-Mn distance show
                      an overall increased ferromagnetic behavior in Mn/GaAs. As a
                      result, from the magnetic-coupling point of view, the two
                      systems behave on average rather similarly. (c) 2006
                      WILEY-VCH Verlag GmbH $\&$ Co. KGaA, Weinheim.},
      keywords     = {J (WoSType)},
      cin          = {IFF-TH-I / JARA-FIT / JARA-SIM},
      ddc          = {530},
      cid          = {I:(DE-Juel1)VDB30 / $I:(DE-82)080009_20140620$ /
                      I:(DE-Juel1)VDB1045},
      pnm          = {Kondensierte Materie},
      pid          = {G:(DE-Juel1)FUEK414},
      shelfmark    = {Materials Science, Multidisciplinary / Physics, Applied /
                      Physics, Condensed Matter},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000240849800033},
      doi          = {10.1002/pssa.200669574},
      url          = {https://juser.fz-juelich.de/record/52861},
}