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Regensburg 2010 – wissenschaftliches Programm

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 37: Poster: Colloids and Complex Liquids

CPP 37.16: Poster

Mittwoch, 24. März 2010, 17:30–19:00, Poster B2

Event-driven simulation of spherical colloids with ultra short-ranged attractive interactions in a slit-pore geometry — •Helge Neitsch and Sabine Klapp — Institut für Theoretische Physik, TU Berlin, Hardenbergstraße 36, D-10623 Berlin, Germany

We have performed event-driven molecular dynamic investigations of a system consisting of colloidal particles with ultra short-ranged attractive interactions which are confined by two smooth, parallel walls. The pairwise interaction between the particles is modeled using a square-well potential with an attraction length of 4% of the particle diameter. We investigate structural and dynamical properties via quantities like cluster-mass distributions and mean square displacements for the bulk and the confined system using wall distances down to 3 particle diameters. We also present first data for a confined valence-limited model, where particles are allowed to form reversible bonds with a fixed maximum number of neighbors as described in detail in [1].

[1] E. Zaccarelli, J. Phys.: Condens. Matter 19, 323101 (2007)

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