Linking particle dynamics to local connectivity in colloidal gels
Soft Condensed Matter
2017-05-10 v1
Abstract
Colloidal gels are a prototypical example of a heterogeneous network solid whose complex properties are governed by thermally-activated dynamics. In this Letter we experimentally establish the connection between the intermittent dynamics of individual particles and their local connectivity. We interpret our experiments with a model that describes single-particle dynamics based on highly cooperative thermal debonding. The model, in quantitative agreement with experiments, provides a microscopic picture for the structural origin of dynamical heterogeneity in colloidal gels and sheds new light on the link between structure and the complex mechanics of these heterogeneous solids.
Cite
@article{arxiv.1612.00641,
title = {Linking particle dynamics to local connectivity in colloidal gels},
author = {Jan Maarten van Doorn and Jochem Bronkhorst and Ruben Higler and Ties van de Laar and Joris Sprakel},
journal= {arXiv preprint arXiv:1612.00641},
year = {2017}
}
Comments
5 pages, 5 figures