Dresden 2014 – wissenschaftliches Programm

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 40: Colloids and Complex Liquids III

CPP 40.6: Vortrag

Donnerstag, 3. April 2014, 12:30–12:45, ZEU 260

Dynamic States in Driven Liquid Crystals of Hard-Spherocylinders — •Ellen Fischermeier, Matthieu Marechal, and Klaus Mecke — Institut für Theoretische Physik, FAU Erlangen-Nürnberg, Staudtstr. 7, 91058 Erlangen, Germany

We investigate a system of hard sherocylinders, arguably the simplest model system for rodlike colloidal liquid crystals, under the influence of an external periodic potential with Langevin dynamics simulation. The chosen potential acts solely on the orientation of each individual particle and represents a preferred direction of alignment which rotates in the x-y-plane. Depending on the rotation frequency of the external potential and the packing fraction of the particles we discover a variety of nonequilibrium states which can be compared to results of density functional theory [1].

We also report on the possibility of coupling this simulation to a Lattice Boltzmann framework to include long range hydrodynamic interactions.

[1] A. Härtel et al., Phys. Rev. E 81, 051703 (2010)