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DY: Fachverband Dynamik und Statistische Physik

DY 30: Poster II

DY 30.10: Poster

Donnerstag, 29. März 2007, 16:00–18:00, Poster D

Surface diffusion in potential landscapes — •Stephan Zschiegner^1,2, 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.