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@ARTICLE{Giesen:39880,
      author       = {Giesen, M. and Baier, S.},
      title        = {{A}tomic transport processes on electrodes in liquid
                      environment},
      journal      = {Journal of physics / Condensed matter},
      volume       = {13},
      issn         = {0953-8984},
      address      = {Bristol},
      publisher    = {IOP Publ.},
      reportid     = {PreJuSER-39880},
      pages        = {5009 - 5026},
      year         = {2001},
      note         = {Record converted from VDB: 12.11.2012},
      abstract     = {We present an overview on the method of analysing
                      equilibrium step fluctuations on metal electrodes to study
                      atomic transport processes at the solid/liquid interface. It
                      is demonstrated that this method provides an access road to
                      a quantitative understanding of surface mobility on metal
                      electrodes. Likewise it is shown that the investigation of
                      step fluctuations is a method to determine activation
                      energies and-with the help of recently introduced
                      temperature dependence experiments-pre-exponential factors.
                      We will show that the dependence of surface mobility on
                      electrode potential and on the electrolyte may be rather
                      complex. As examples, we present STM studies on stepped
                      Cu(111) and Ag(111) electrodes in aqueous electrolytes. For
                      Cu (111) in HCl, we find that the time dependence of step
                      fluctuations obeys a t(1/3)-law, which entails that step
                      fluctuations are dominated by fast attachment/detachment
                      kinetics at steps and slow terrace diffusion. For Ag(111) in
                      CuSO4 and H2SO4, an L(1/2)t(1/2)- dependence (with L the
                      step distance) near the potential of fast Ag dissolution is
                      observed. This time dependence corresponds to an atomic
                      transport based on terrace diffusion and transport through
                      the liquid. We also show that the results of temperature
                      dependent studies of step fluctuations on Ag(111) are in
                      excellent agreement with previous investigations concerning
                      the potential dependence.},
      keywords     = {J (WoSType)},
      cin          = {ISG-3},
      ddc          = {530},
      cid          = {I:(DE-Juel1)VDB43},
      pnm          = {Struktur und Dynamik von Grenzflächen},
      pid          = {G:(DE-Juel1)FUEK60},
      shelfmark    = {Physics, Condensed Matter},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000169172900026},
      doi          = {10.1088/0953-8984/13/21/325},
      url          = {https://juser.fz-juelich.de/record/39880},
}