Direct Observation of Dynamical Heterogeneities in Colloidal Hard-Sphere Suspensions
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- 14 January 2000
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 287 (5451) , 290-293
- https://doi.org/10.1126/science.287.5451.290
Abstract
The real-space dynamics in a model system of colloidal hard spheres was studied by means of time-resolved fluorescence confocal scanning microscopy. Direct experimental evidence for the presence of dynamical heterogeneities in a dense liquid was obtained from an analysis of particle trajectories in two-dimensional slices of the bulk sample. These heterogeneities manifest themselves as a non-Gaussian probability distribution of particle displacements and also affect the onset of long-time diffusive behavior.Keywords
This publication has 22 references indexed in Scilit:
- Structural precursor to freezing in the hard-disk and hard-sphere systemsPhysical Review E, 1998
- Asymptotic laws for tagged-particle motion in glassy systemsPhysical Review E, 1998
- Methods of Digital Video Microscopy for Colloidal StudiesJournal of Colloid and Interface Science, 1996
- Real-Space Structure of Colloidal Hard-Sphere GlassesScience, 1995
- Kinetic structure of a two-dimensional liquidPhysical Review E, 1995
- Formation of Glasses from Liquids and BiopolymersScience, 1995
- Change in crystallization mechanism at the glass transition of colloidal spheresNature, 1993
- Nature of nonexponential loss of correlation above the glass transition investigated by multidimensional NMRPhysical Review Letters, 1991
- Phase behaviour of concentrated suspensions of nearly hard colloidal spheresNature, 1986
- Time expansion of correlation functions and the theory of slow neutron scatteringPhysica, 1966