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

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• Multiple glass transitions in star polymer mixtures: Insights from theory and simulations
• Structural and microscopic relaxations in a colloidal glass
• Slow Dynamics of the High Density Gaussian Core Model
• Interplay of anisotropy in shape and interactions in charged platelet suspensions
• Manifestation of Random First Order Transition theory in Wigner glasses
• Oil-in-water microfluidics on the colloidal scale: new routes to self-assembly and glassy packings
• Interfacial and wetting properties of a binary point Yukawa fluid
• Superposition of droplet elasticity and volume fraction effects on emulsion dynamics
• Effective potentials induced by mixtures of patchy and hard co-solutes
• Unveiling Crystalline Order from Glassy Behavior of Charged Rods at Very Low Salt Concentrations
• Formation of a transient amorphous solid in low density aqueous charged sphere suspensions