Scaling of the Space-Time Correlation Function of Particle Currents in a Suspension of Hard-Sphere-Like Particles: Exposing When the Motion of Particles is Brownian

W. van Megen; V. A. Martinez; G. Bryant

doi:10.1103/PhysRevLett.103.258302

Scaling of the Space-Time Correlation Function of Particle Currents in a Suspension of Hard-Sphere-Like Particles: Exposing When the Motion of Particles is Brownian

W. van Megen, V. A. Martinez, G. Bryant

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract

The current correlation function is determined from dynamic light scattering measurements of a suspension of particles with hard spherelike interactions. For suspensions in thermodynamic equilibrium we find scaling of the space and time variables of the current correlation function. This finding supports the notion that the movement of suspended particles can be described in terms of uncorrelated Brownian encounters. However, in the metastable fluid, at volume fractions above freezing, this scaling fails.

Original language	English
Article number	258302
Pages (from-to)	-
Number of pages	4
Journal	Physical Review Letters
Volume	103
Issue number	25
DOIs	https://doi.org/10.1103/PhysRevLett.103.258302
Publication status	Published - 18 Dec 2009

Keywords

INTERMEDIATE SCATTERING FUNCTION
GLASS-TRANSITION
COLLOIDAL SUSPENSIONS
SMOLUCHOWSKI
CRYSTALLIZATION
DISPERSIONS

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10.1103/PhysRevLett.103.258302

2009 vanMegen PRL scaling currentSubmitted manuscript, 360 KB

http://prl.aps.org/abstract/PRL/v103/i25/e258302

Cite this

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Scaling of the Space-Time Correlation Function of Particle Currents in a Suspension of Hard-Sphere-Like Particles: Exposing When the Motion of Particles is Brownian

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Keywords

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