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Self-diffusion of colloids at freezing

Ramaswamy, S (1997) Self-diffusion of colloids at freezing. [Book Chapter]

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This is an introduction to the theory of interacting Brownian particles, as applied to charge-stabilised colloidal suspensions near their equilibrium liquid-solid transition. The density functional approach to the statics of the transition is reviewed briefly, and the generalised Langevin equation method for the dynamics presented in detail. Work with A.V. Indrani [1] on a self-consistent approach for calculating the excess single-particle friction is presented, which explains the observed [2] ''universal'' suppression of self-diffusion at freezing as a consequence of the universal structure-factor height at this transition. Criticisms, open questions, and challenges to theory are discussed.

Item Type: Book Chapter
Series.: Nato advanced science institutes series, series e, applied sciences
Publisher: Kluwer Academic Publishers
Additional Information: Copyright of this article belongs to Kluwer Academic Publishers.
Department/Centre: Division of Physical & Mathematical Sciences > Physics
Date Deposited: 15 Mar 2012 07:41
Last Modified: 15 Mar 2012 07:41
URI: http://eprints.iisc.ac.in/id/eprint/43982

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