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@ARTICLE{Romanyuk:10291,
      author       = {Romanyuk, K. and Brona, J. and Voigtländer, B.},
      title        = {{N}anoscale {P}it {F}ormation at 2{D} {G}e {L}ayers on
                      {S}i: {I}nfluence of {E}nergy and {E}nropy},
      journal      = {Physical review letters},
      volume       = {103},
      issn         = {0031-9007},
      address      = {College Park, Md.},
      publisher    = {APS},
      reportid     = {PreJuSER-10291},
      pages        = {096101},
      year         = {2009},
      note         = {The authors acknowledge critical reading of the manuscript
                      by S. N. Filimonov and V. Cherepanov. We also acknowledge
                      financial support from the EU Nanocage Project No.
                      MEST-CT-2004-506854.},
      abstract     = {The structural stability of two-dimensional (2D) SiGe
                      nanostructures is studied by scanning tunneling microscopy.
                      The formation of pits with a diameter of 2-30 nm in one
                      atomic layer thick Ge stripes is observed. The unanticipated
                      pit formation occurs due to an energetically driven motion
                      of the Ge atoms out of the Ge stripe towards the Si
                      terminated step edge followed by an entropy driven GeSi
                      intermixing at the step edge. Using conditions where the
                      pits coalesce results in the formation of freestanding 8 nm
                      wide GeSi wires on Si(111).},
      keywords     = {J (WoSType)},
      cin          = {IBN-3 / JARA-FIT},
      ddc          = {550},
      cid          = {I:(DE-Juel1)VDB801 / $I:(DE-82)080009_20140620$},
      pnm          = {Kondensierte Materie},
      pid          = {G:(DE-Juel1)FUEK414},
      shelfmark    = {Physics, Multidisciplinary},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000269718500042},
      doi          = {10.1103/PhysRevLett.103.096101},
      url          = {https://juser.fz-juelich.de/record/10291},
}