Dresden 2003 – scientific programme
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DY: Dynamik und Statistische Physik
DY 22: Soft matter II
DY 22.5: Talk
Tuesday, March 25, 2003, 11:45–12:00, G\"OR/226
Complex Dewetting Scenarios Captured by Thin-Film Models — •Klaus Mecke1, Jürgen Becker2, Günter Grün2, Ralf Seemann3, Hubert Mantz3, Karin Jacobs3 und Ralf Blossey4 — 1MPI für Metallforschung, Heisenbergstr.1, 70569 Stuttgart — 2Institut für Angewandte Mathematik, Uni Bonn, 53115 Bonn — 3Abt. Angewandte Physik, Uni Ulm, 89069 Ulm — 4Zentrum für Bioinformatik, Universität des Saarlandes, 66041 Saarbrücken
In the course of miniaturization of electronic and microfluidic devices, reliable predictions of the stability of ultrathin films have a strategic role for design purposes. Consequently, efficient computational techniques that allow for a direct comparison with experiment become increasingly important. Here we demonstrate, for the first time, that the full complex spatial and temporal evolution of the rupture of ultrathin films can be modelled in quantitative agreement with experiment [1]. We accomplish this by combining highly controlled experiments on different film-rupture patterns with computer simulations using novel numerical schemes for thin-film equations. For the quantitative comparison of the pattern evolution in both experiment and simulation we introduce a novel pattern analysis method based on Minkowski measures. Our results are fundamental for the development of efficient tools capable of describing essential aspects of thin-film flow in technical systems.
[1] J. Becker et al., Nature Materials 2 (2003) 59