Cluster structure and dynamics in gels and glasses
arXiv:1607.02794 · doi:10.1088/1742-5468/2016/07/074011
Abstract
The dynamical arrest of gels is the consequence of a well defined structural phase transition, leading to the formation of a spanning cluster of bonded particles. The dynamical glass transition, instead, is not accompanied by any clear structural signature. Nevertheless, both transitions are characterized by the emergence of dynamical heterogeneities. Reviewing recent results from numerical simulations, we discuss the behavior of dynamical heterogeneities in different systems and show that a clear connection with the structure exists in the case of gels. The emerging picture may be also relevant for the more elusive case of glasses. We show, as an example, that the relaxation process of a simple glass-forming model can be related to a reverse percolation transition and discuss further perspective in this direction.
Published in the J. Stat. Mech. Special Issue of "The Role of Structure in Glassy and Jammed Systems "
References in corpus (29)
- Supercooled Liquids for Pedestrians
- Glassy dynamics of kinetically constrained models
- Colloidal Gels: Equilibrium and Non-Equilibrium Routes
- Equilibrium cluster phases and low-density arrested disordered states: The role of short-range attraction and long-range repulsion
- The role of local structure in dynamical arrest
- Differential Dynamic Microscopy: Probing wave vector dependent dynamics with a microscope
- What do we learn from the shape of the dynamical susceptibility of glass-formers?
- Scaling of dynamics with the range of interaction in short-range attractive colloids
- Spatial structures and dynamics of kinetically constrained models for glasses
- Columnar and lamellar phases in attractive colloidal systems
- Lengthscale dependence of dynamic four-point susceptibilities in glass formers
- Heterogeneous-k-core versus Bootstrap Percolation on Complex Networks
- Facilitated spin models on Bethe lattice: bootstrap percolation, mode-coupling transition and glassy dynamics
- Pattern formation and glassy phase in the theory with screened electrostatic repulsion
- Colloidal gelation, percolation and structural arrest
- Effect of bond lifetime on the dynamics of a short-range attractive colloidal system
- Static and dynamic heterogeneities in a model for irreversible gelation
- Dynamic facilitation picture of a higher-order glass singularity
- When gel and glass meet: A mechanism for multistep relaxation
- Dynamical heterogeneity in a model for permanent gels: Different behavior of dynamical susceptibilities
- Dynamic heterogeneities in attractive colloids
- Dynamical arrest: interplay of the glass and of the gel transitions
- Relaxation dynamics in a transient network fluid with competing gel and glass phases
- Dynamical Correlation Length and Relaxation Processes in a Glass Former
- Scaling and universality in glass transition
- Crossover from - to -relaxation in cooperative facilitation dynamics
- Microscopic models of mode-coupling theory: the scenario
- Pacman Percolation and the Glass Transition
- Percolation approach to glassy dynamics with continuously broken ergodicity