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@ARTICLE{Ikonomov:56025,
      author       = {Ikonomov, J. and Starbova, K. and Giesen, M.},
      title        = {{I}sland coalescence and diffusion along kinked steps on
                      {C}u(001): {E}vidence for a large kink {E}hrlich-{S}chwoebel
                      barrier},
      journal      = {Surface science},
      volume       = {601},
      issn         = {0039-6028},
      address      = {Amsterdam},
      publisher    = {Elsevier},
      reportid     = {PreJuSER-56025},
      pages        = {1403 - 1408},
      year         = {2007},
      note         = {Record converted from VDB: 12.11.2012},
      abstract     = {Using temperature-variable scanning tunneling microscopy,
                      we studied the coalescence of vacancy islands on Cu(001) in
                      ultra-high vacuum. From the temperature dependence of the
                      relaxation of merged vacancy islands to the equilibrium
                      shape we obtain an activation energy of the island
                      coalescence process of 0.76 eV. From that value we deduce an
                      activation energy for the atomic hopping coefficient of E-rh
                      = 0.89 eV. Comparing our result with previous STM data on
                      step fluctuations with dominant diffusion along straight
                      step segments (E-rh = 0.68 eV; [M. Giesen, S. Dieluweit, J.
                      Mol. Catal. A: Chem. 216 (2004) 263]) and step fluctuations
                      with kink crossing (E-rh = 0.9 eV; [M. Giesen-Seibert, F.
                      Schmitz, R. Jentjens, H. Ibach, Surf. Sci. 329 (1995) 47]),
                      we conclude that there is a large extra barrier for
                      diffusion of atoms across kinks on Cu(001) of the order of
                      0.23 eV. This is the first direct experimental evidence for
                      the existence of a large kink Ehrlich-Schwoebel barrier on
                      Cu(001). (c) 2007 Elsevier B.V. All rights reserved.},
      keywords     = {J (WoSType)},
      cin          = {IBN-4},
      ddc          = {540},
      cid          = {I:(DE-Juel1)VDB802},
      pnm          = {Kondensierte Materie},
      pid          = {G:(DE-Juel1)FUEK414},
      shelfmark    = {Chemistry, Physical / Physics, Condensed Matter},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000245065100033},
      doi          = {10.1016/j.susc.2007.01.004},
      url          = {https://juser.fz-juelich.de/record/56025},
}