Regensburg 2007 – scientific programme
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DY: Fachverband Dynamik und Statistische Physik
DY 30: Poster II
DY 30.10: Poster
Thursday, March 29, 2007, 16:00–18:00, Poster D
Surface diffusion in potential landscapes — •Stephan Zschiegner1,2, Stefanie Russ3, Armin Bunde1, Jörg Kärger2, and Rustem Valiullin2 — 1Theoretische Physik III, JLU Giessen — 2Experimentelle Physik, Universität Leipzig — 3Theoretische Physik, FU Berlin
We study 2D surface diffusion with different types of potential landscapes. As test potentials we use Gaussian and power-law distributions with or without correlations. For these model surfaces we investigate diffusion properties that are the basis of understanding the inverse problem: Getting potential lanscapes from surface diffusion measurements. For this purpose, we determine a possible basis of potentials and their diffusion properties for a direct transformation from the experimental results to the underlying potential within the pore.