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DY: Fachverband Dynamik und Statistische Physik

DY 27: Poster - Statistical Physics, Critical Phenomena, Brownian motion

DY 27.3: Poster

Dienstag, 8. März 2016, 18:15–21:00, Poster C

Bi-stable state on the prestructured surface: Free energy calculation — •Oleg Buller, Lisa Götte, and Andreas Heuer — Institut für Physikalische Chemie, WWU, Münster

Attachment of molecules on a prepatterned surface by vapor deposition displays a wide variety of resulting structures. We are interested in the single stripe and double stripe prepattern. For the case of a single stripe geometry an instability is observed forming a bulge. A second stripe close-by can destabilize the bulge leading to the agglomeration of the molecules in-between the stripes. We model this system by a kinetic Monte Carlo model and calculate the relative free energies by using Markov State sampling techniques. We analyze the influence on the stripe distance and the amount of particles forming a bulge.