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Regensburg 2013 – scientific programme

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 20: Poster: Colloids and Complex Liquids

CPP 20.10: Poster

Tuesday, March 12, 2013, 18:15–20:15, Poster C

Self assembly in a two-dimensional system of hard disks with quadrupolar interaction — •Malte Kähne and Sabine H. L. Klapp — Institut für Theoretische Physik, TU Berlin, Hardenbergstraße 36, D-10623 Berlin, Germany

Using standard Monte Carlo algorithms in the grand canonical ensemble, we examine the thermodynamic properties and the structural behaviour of a two-dimensional hard disk fluid with quadrupolar interaction potential. At low temperatures, this liquid exhibits a cluster phase. We locate this cluster phase and study the aggregation of these clusters as well as their size distribution. We analyse the structure of these clusters by local bond-angle order parameters and the pair correlation function. Our results illustrate the likelihood of the T-structure, which is also found as a stable crystal structure for three-dimensional quadrupolar fluids [1].

[1] C. Vega, B. Garzon, S. Lago and P. A. Monson, J. Mol. Liq 73, 157 (1998)

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