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@ARTICLE{Landrock:57679,
      author       = {Landrock, S. and Urban, K. and Ebert, Ph.},
      title        = {{S}pontaneous 2{D} {A}ccumulation of {C}harged {B}e
                      {D}opants in {G}a{A}s p-n {S}uperlattices},
      journal      = {Physical review letters},
      volume       = {96},
      issn         = {0031-9007},
      address      = {College Park, Md.},
      publisher    = {APS},
      reportid     = {PreJuSER-57679},
      pages        = {076101},
      year         = {2006},
      note         = {Record converted from VDB: 12.11.2012},
      abstract     = {In a classical view, abrupt dopant profiles in
                      semiconductors tend to be smoothed out by diffusion due to
                      concentration gradients and repulsive screened Coulomb
                      interactions between the charged dopants. We demonstrate,
                      however, using cross-sectional scanning tunneling microscopy
                      and secondary ion mass spectroscopy, that charged Be dopant
                      atoms in GaAs p-n superlattices spontaneously accumulate and
                      form two-dimensional dopant layers. These are stabilized by
                      reduced repulsive screened Coulomb interactions between the
                      charged dopants arising from the two-dimensional quantum
                      mechanical confinement of charge carriers.},
      keywords     = {J (WoSType)},
      cin          = {IFF-IMF / JARA-FIT},
      ddc          = {550},
      cid          = {I:(DE-Juel1)VDB37 / $I:(DE-82)080009_20140620$},
      pnm          = {Grundlagen für zukünftige Informationstechnologien /
                      Kondensierte Materie},
      pid          = {G:(DE-Juel1)FUEK412 / G:(DE-Juel1)FUEK414},
      shelfmark    = {Physics, Multidisciplinary},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000235554100051},
      doi          = {10.1103/PhysRevLett.96.076101},
      url          = {https://juser.fz-juelich.de/record/57679},
}