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@ARTICLE{Paul:58702,
      author       = {Paul, N. and Filimonov, S. and Cherepanov, V. and Cakmak,
                      M. and Voigtländer, B.},
      title        = {{I}dentification of {G}e/{S}i intermixing processes at the
                      {B}i/{G}e/{S}i(111) surface},
      journal      = {Physical review letters},
      volume       = {98},
      issn         = {0031-9007},
      address      = {College Park, Md.},
      publisher    = {APS},
      reportid     = {PreJuSER-58702},
      pages        = {166104},
      year         = {2007},
      note         = {Record converted from VDB: 12.11.2012},
      abstract     = {The chemical contrast between Si and Ge obtained by
                      scanning tunneling microscopy on Bi-covered Si(111) surfaces
                      is used as a tool to identify two vertical Ge/Si intermixing
                      processes. During annealing of an initially pure Ge
                      monolayer on Si, the intermixing is confined to the first
                      two layers approaching a $50\%$ Ge concentration in each
                      layer. During epitaxial growth, a growth front induced
                      intermixing process acting at step edges is observed.
                      Because of the open atomic structure at the step edges,
                      relative to the terraces, a lower activation barrier for
                      intermixing at the step edge, compared to the terrace, is
                      observed.},
      keywords     = {J (WoSType)},
      cin          = {IBN-3 / CNI / JARA-FIT},
      ddc          = {550},
      cid          = {I:(DE-Juel1)VDB801 / I:(DE-Juel1)VDB381 /
                      $I:(DE-82)080009_20140620$},
      pnm          = {Grundlagen für zukünftige Informationstechnologien},
      pid          = {G:(DE-Juel1)FUEK412},
      shelfmark    = {Physics, Multidisciplinary},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000245871200041},
      doi          = {10.1103/PhysRevLett.98.166104},
      url          = {https://juser.fz-juelich.de/record/58702},
}