Hauptseite > Publikationsdatenbank > Island dynamics on charged silver electrodes: Kinetic Monte-Carlo simulations > print

001     8079
005     20180208230728.0
024 7 _ |2 DOI
|a 10.1016/j.electacta.2009.03.026
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|a Electrochemistry
100 1 _ |0 P:(DE-HGF)0
|a Pötting, K.
|b 0
245 _ _ |a Island dynamics on charged silver electrodes: Kinetic Monte-Carlo simulations
260 _ _ |a New York, NY [u.a.]
|b Elsevier
|c 2009
300 _ _ |a 4494 - 4500
336 7 _ |0 PUB:(DE-HGF)16
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|a article
440 _ 0 |0 1776
|a Electrochimica Acta
|v 54
|x 0013-4686
|y 19
500 _ _ |a K.R and W.S. gratefully acknowledge financial support by the Landes-stiftung Baden-Wurttemberg and by the Deutsche Forschungsgerneinschaft (SCHM 344/35-1). RQ. gratefully acknowledges financial support by the Deutscher Akademischer Austausch Dienst (DAAD). N.L. gratefully acknowledges financial support by the Deutsche Forschungsgerneinschaft and CONICET. The authors also thank Dr. M.C. Gimenez for providing us with her KMC program, and Dr. Y. Gohda for calculating the dipole moments.
520 _ _ |a The fluctuations of steps and the shapes of islands on metal surfaces generally depend strongly on the electrode potential, an effect that has been attributed to the interaction of local surface dipole moments with the double-layer field. In order to understand the details of this effect,we have calculated the relevant energies and dipole moments for the diffusion processes that govern the fluctuations of steps and island shapes on Ag(1 0 0). The corresponding rates have been used in kinetic Monte-Carlo simulations to explore the dynamics of these structures. Due to the field-dipole interactions the mobility of the surface becomes larger with increasing electrode potential. Fourier analysis allows us to determine the step stiffness and the kink energy, and from the shape of the islands we have obtained the line tension. All three quantities decrease with increasing double-layer field. (C) 2009 Elsevier Ltd. All rights reserved.
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653 2 0 |2 Author
|a Kinetic Monte-Carlo
653 2 0 |2 Author
|a Step fluctuations
653 2 0 |2 Author
|a Step stiffness
653 2 0 |2 Author
|a Surface dipole moments
653 2 0 |2 Author
|a Line tension
653 2 0 |2 Author
|a Kink energy
700 1 _ |0 P:(DE-HGF)0
|a Luque, N.B.
|b 1
700 1 _ |0 P:(DE-HGF)0
|a Quaino, P.M.
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|a Ibach, H.
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700 1 _ |0 P:(DE-HGF)0
|a Schmickler, W.
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773 _ _ |0 PERI:(DE-600)1483548-4
|a 10.1016/j.electacta.2009.03.026
|g Vol. 54, p. 4494 - 4500
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|t Electrochimica acta
|v 54
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856 7 _ |u http://dx.doi.org/10.1016/j.electacta.2009.03.026
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