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Regensburg 2004 – scientific programme

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CPP: Chemische Physik und Polymerphysik

CPP 16: POSTER: Computational Physics, Complex Systems

CPP 16.5: Poster

Tuesday, March 9, 2004, 17:00–19:00, B

Different Modes of Spinodal Dewetting in a Two-Layer System — •Andrey Pototsky1, Michael Bestehorn1, Domnic Merkt1 und Uwe Thiele21lefrsuhl fue theoretische physik II, BTU, Erich-Weinert Str. 1, D-03046, Cottbus, Germany — 2MPI fuer Physik komplexer Systeme, Noethnitzer Str. 38, D-01187, Dresden, Germany

We consider two ultra thin layers of different liquids on a solid substrate. Using long wave theory coupled evolution equations for the free liquid-liquid and liquid-gas interfaces are derived taken into account non-retarded Van der Waals forces. Analisis of their linear and non-linear behavior shows that, both, varicose and zigzag modes can be unstable and lead to film rupture at the inner interface or substrate. The results are exemplified using a Si/PS/PMMA/air system.

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