Numerical Investigation of Glassy Dynamics in Low Density Systems

Abstract

Vitrification in colloidal systems typically occurs at high densities driven by sharply varying, short-ranged interactions. The possibility of glassy behavior arising from smoothly varying, long-ranged particle interactions has received relatively little attention. Here we investigate the behavior of screened charged particles, and explicitly demonstrate that these systems exhibit glassy properties in the regime of low temperature and low density. Properties close to this low density (Wigner) glass transition share many features with their hard-sphere counterparts, but differ in quantitative aspects that may be accounted for via microscopic theoretical considerations.

4 pages, 4 figures, revised version

References in corpus (3)

• Colloidal Gels: Equilibrium and Non-Equilibrium Routes
• Phase behavior and far-from-equilibrium gelation of charged attractive colloids
• Low temperature behaviour and glass line of the symmetrical colloidal electrolyte

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• Superposition of droplet elasticity and volume fraction effects on emulsion dynamics
• Effective potentials induced by mixtures of patchy and hard co-solutes
• Formation of a transient amorphous solid in low density aqueous charged sphere suspensions