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Regensburg 2000 – scientific programme

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DY: Dynamik und Statistische Physik

DY 46: POSTER II

DY 46.11: Poster

Thursday, March 30, 2000, 15:00–18:00, D

Dynamics of layering transitions in confined liquids — •Frieder Mugele1 and Miquel Salmeron21Universit*t Ulm, Abteilung Angewandte Physik; Albert Einstein Allee 11; D 89069 ULM — 2Lawrence Berkeley National Laboratory, Materials Science Division; 1, Cyclotron Road; Berkeley, CA 94720, USA

Multiple beam interferometry and video microscopy were used to investigate the layering transition of thin liquid films of 1-undecanol confined between atomically smooth mica surfaces. The expulsion of a molecularly thin lubricant layer was followed directly in two dimensions. Overall, the dynamics of layering transitions follow theoretical predictions based on two-dimensional hydrodynamics. Frequently, pockets of liquid remain trapped inside the contact area at the end of the transition. The trapped pockets undergo shape transformations to minimize elastic and interfacial energy.
F. Mugele and M. Salmeron, submitted to PRL

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