title: In operando GISAXS studies of mound coarsening in electrochemical homoepitaxy.
abstract: Kinetic roughening during electrodeposition was studied by grazing incidence small angle x-ray scattering for the case of Au(001) homoepitaxial growth in Cl- containing electrolytes. The formation and coarsening of an isotropic mound distribution on unreconstructed Au(001) and of [110]-oriented anisotropic mounds on the "hex" reconstructed surface was observed. The lateral mound coarsening is described by a well-defined scaling law. On unreconstructed Au a transition in the coarsening exponent from ≈1/4 to ≈1/3 with increasing potential is found, which can be explained by the pronounced potential dependence of surface transport processes in an electrochemical environment.
authors.affiliation: Institut für Experimentelle und Angewandte Physik, Christian-Albrechts-Universität Kiel, Leibnizstraße 19, D-24098 Kiel, Germany.
authors.forename: Martin
authors.initials: M
authors.lastname: Ruge
authors.affiliation: Institut für Experimentelle und Angewandte Physik, Christian-Albrechts-Universität Kiel, Leibnizstraße 19, D-24098 Kiel, Germany and European Synchrotron Radiation Facility, 6 rue Jules Horowitz, BP 220, F-38043 Grenoble Cedex, France.
authors.forename: Frederik
authors.initials: F
authors.lastname: Golks
authors.affiliation: European Synchrotron Radiation Facility, 6 rue Jules Horowitz, BP 220, F-38043 Grenoble Cedex, France.
authors.forename: Jörg
authors.initials: J
authors.lastname: Zegenhagen
authors.affiliation: Institut für Experimentelle und Angewandte Physik, Christian-Albrechts-Universität Kiel, Leibnizstraße 19, D-24098 Kiel, Germany.
authors.forename: Olaf M
authors.initials: OM
authors.lastname: Magnussen
authors.affiliation: Institut für Experimentelle und Angewandte Physik, Christian-Albrechts-Universität Kiel, Leibnizstraße 19, D-24098 Kiel, Germany.
authors.forename: Jochim
authors.initials: J
authors.lastname: Stettner