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Smectic demixing in hard particle fluids

Franz J. Vesely
Computational Physics Group
Institute of Experimental Physics, University of Vienna
Boltzmanngasse 5, A-1090 Vienna

ASPUS (Applied StatPhys & Simulation) lecture, Vienna, Dec-2002
Augmented version of EMLG lecture, Rhodes, Sep-2002

Abstract: Mixtures of elongated molecules with different lengths tend to demix upon compression. Our earlier simulations showed that binary Gay-Berne systems demix into a regular layered structure, the longer particles assembling in smectic strata. To gain a better understanding of the phenomenon we now investigate simpler model systems made up of (a) hard spherocylinders and spheres; (b) hard ovals and spheres.

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F. J. Vesely / University of Vienna