Glass Transition and Dynamical Heterogeneities in Charged Colloidal Suspensions under Pressure

by: BVR Tata, PS Mohanty, MC Valsakumar

Physical Review Letters, Vol. 88, No. 1. (19 December 2001), 018302.

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Abstract

Constant-pressure Monte Carlo simulations have been performed to study the static and dynamical properties of a liquidlike ordered suspension of like-charged colloidal particles subjected to a sudden compression. We report for the first time a liquidlike ordered monodisperse suspension undergoing a glass transition at a very low volume fraction ( φ = 0.003) and existence of dynamical heterogeneities near the glass transition. Mobile particles have been identified using the non-Gaussian parameter for the self-part of the Van Hove correlation function; and they are found to form clusters. The pressure dependence of mean cluster size and the cluster-size distribution of the mobile particles are discussed.

@article{citeulike:2453788, abstract = {Constant-pressure Monte Carlo simulations have been performed to study the static and dynamical properties of a liquidlike ordered suspension of like-charged colloidal particles subjected to a sudden compression. We report for the first time a liquidlike ordered monodisperse suspension undergoing a glass transition at a very low volume fraction ( φ = 0.003) and existence of dynamical heterogeneities near the glass transition. Mobile particles have been identified using the non-Gaussian parameter for the self-part of the Van Hove correlation function; and they are found to form clusters. The pressure dependence of mean cluster size and the cluster-size distribution of the mobile particles are discussed.}, author = {Tata, B. V. R. and Mohanty, P. S. and Valsakumar, M. C. }, citeulike-article-id = {2453788}, doi = {10.1103/PhysRevLett.88.018302}, journal = {Physical Review Letters}, keywords = {glass, systemtools}, month = {December}, number = {1}, pages = {018302+}, posted-at = {2008-03-01 21:19:18}, priority = {2}, publisher = {American Physical Society}, title = {Glass Transition and Dynamical Heterogeneities in Charged Colloidal Suspensions under Pressure}, url = {http://dx.doi.org/10.1103/PhysRevLett.88.018302}, volume = {88}, year = {2001} }

RIS record

TY - JOUR ID - citeulike:2453788 L3 - citeulike-article-id:2453788 TI - Glass Transition and Dynamical Heterogeneities in Charged Colloidal Suspensions under Pressure JF - Physical Review Letters VL - 88 IS - 1 SP - 018302 PB - American Physical Society N2 - Constant-pressure Monte Carlo simulations have been performed to study the static and dynamical properties of a liquidlike ordered suspension of like-charged colloidal particles subjected to a sudden compression. We report for the first time a liquidlike ordered monodisperse suspension undergoing a glass transition at a very low volume fraction ( φ = 0.003) and existence of dynamical heterogeneities near the glass transition. Mobile particles have been identified using the non-Gaussian parameter for the self-part of the Van Hove correlation function; and they are found to form clusters. The pressure dependence of mean cluster size and the cluster-size distribution of the mobile particles are discussed. KW - glass KW - systemtools AU - Tata, BVR AU - Mohanty, PS AU - Valsakumar, MC PY - 2001/12/19/ UR - http://dx.doi.org/10.1103/PhysRevLett.88.018302 ER -

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