A cluster mode-coupling approach to weak gelation in attractive colloids
arXiv:cond-mat/0310566 · doi:10.1103/PhysRevLett.92.148302
Abstract
Mode-coupling theory (MCT) predicts arrest of colloids in terms of their volume fraction, and the range and depth of the interparticle attraction. We discuss how effective values of these parameters evolve under cluster aggregation. We argue that weak gelation in colloids can be idealized as a two-stage ergodicity breaking: first at short scales (approximated by the bare MCT) and then at larger scales (governed by MCT applied to clusters). The competition between arrest and phase separation is considered in relation to recent experiments. We predict a long-lived `semi-ergodic' phase of mobile clusters, showing logarithmic relaxation close to the gel line.
4 pages, 3 figures
References in corpus (10)
- Higher order glass-transition singularities in colloidal systems with attractive interactions
- Nonergodicity transitions in colloidal suspensions with attractive interactions
- Mode-Coupling Approximations, Glass Theory and Disordered Systems
- Ideal glass-glass transitions and logarithmic decay of correlations in a simple system
- Competition of percolation and phase separation in a fluid of adhesive hard spheres
- Logarithmic Relaxation in Glass-Forming Systems
- Evidence of a higher-order singularity in dense short-ranged attractive colloids
- Colloidal gelation and non-ergodicity transitions
- A unifying model for chemical and colloidal gels
- Percolation in Cluster-Cluster Aggregation Processes
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- Gel to glass transition in simulation of a valence-limited colloidal system
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- Length scale dependent relaxation in colloidal gels
- Colloidal gelation with variable attraction energy
- Structure and Relaxation Dynamics of a Colloidal Gel
- Systematic characterization of thermodynamic and dynamical phase behavior in systems with short-ranged attraction
- Probing colloidal gels at multiple lengthscales: the role of hydrodynamics
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- Effect of bond lifetime on the dynamics of a short-range attractive colloidal system
- Real Space Analysis of Colloidal Gels: Triumphs, Challenges and Future Directions
- Geometric frustration in small colloidal clusters
- Dynamics of interacting Brownian particles: a diagrammatic formulation
- From compact to fractal crystalline clusters in concentrated systems of monodisperse hard spheres
- Coupling between criticality and gelation in "sticky" spheres: A structural analysis
- Local structure of percolating gels at very low volume fractions
- Complex viscosity behavior and cluster formation in attractive colloidal systems
- Dynamic heterogeneities in attractive colloids
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- The effect of inter-cluster interactions on the structure of colloidal clusters
- Aging in attraction-driven colloidal glasses
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- Nonlinear rheology of dense colloidal systems with short-ranged attraction: A mode-coupling theory analysis
- Structure and dynamics of model colloidal clusters with short-range attractions
- Dynamic arrest in model porous media -- intermediate scattering functions
- Phase separation and dynamical arrest of protein solutions dominated by short-range attractions
- Phase separation of stable colloidal clusters
- Sensitivity of arrest in mode-coupling glasses to low-q structure
- Correlated rigidity percolation and colloidal gels