Correlations of Structure and Dynamics in an Aging Colloidal Glass
arXiv:cond-mat/0512698 · doi:10.1016/j.ssc.2006.04.039
Abstract
We study concentrated colloidal suspensions, a model system which has a glass transition. Samples in the glassy state show aging, in that the motion of the colloidal particles slows as the sample ages from an initial state. We study the relationship between the static structure and the slowing dynamics, using confocal microscopy to follow the three-dimensional motion of the particles. The structure is quantified by considering tetrahedra formed by quadruplets of neighboring particles. We find that while the sample clearly slows down during aging, the static properties as measured by tetrahedral quantities do not vary. However, a weak correlation between tetrahedron shape and mobility is observed, suggesting that the structure facilitates the motion responsible for the sample aging.
arXiv commentSubmitted to Solid State Communications
References in corpus (3)
Cited by in corpus (22)
- The Physics of the Colloidal Glass Transition
- The role of local structure in dynamical arrest
- Confocal microscopy of colloidal particles: towards reliable, optimum coordinates
- The structural origin of the hard-sphere glass transition in granular packing
- An introduction to the colloidal glass transition
- Short and long range correlated motion observed in colloidal glasses and liquids
- Dynamics and structure of an aging binary colloidal glass
- Spatial and temporal dynamical heterogeneities approaching the binary colloidal glass transition
- Direct Measurement of the Free Energy of Aging Hard-Sphere Colloidal Glasses
- The glass transition of two-dimensional binary soft disk mixtures with large size ratios
- Microscopic picture of aging in SiO2
- Observation and Characterization of the Vestige of the Jamming Transition in a Thermal 3D System
- Aging to Equilibrium Dynamics of SiO2
- A minimal model for kinetic arrest
- A Free Energy Landscape for Cage Breaking of Three Hard Disks
- Temporal and spatial heterogeneity in aging colloids: a mesoscopic model
- From particles to spins: Eulerian formulation of supercooled liquids and glasses
- Record dynamics of evolving metastable systems: theory and applications
- Dynamics of dense hard sphere colloidal systems: a numerical analysis
- Rearrangements during slow compression of a jammed two-dimensional emulsion
- Stirring supercooled colloidal liquids at the particle scale
- Instability cascades in crumpling mylar sheets follow a log-Poisson statistic