Dynamical Correlation Length and Relaxation Processes in a Glass Former

Abstract

We investigate the relaxation process and the dynamical heterogeneities of the kinetically constrained Kob--Anderson lattice glass model, and show that these are characterized by different timescales. The dynamics is well described within the diffusing defect paradigm, which suggest to relate the relaxation process to a reverse--percolation transition. This allows for a geometrical interpretation of the relaxation process, and of the different timescales.

References in corpus (6)

• Theoretical perspective on the glass transition and amorphous materials
• Glassy dynamics of kinetically constrained models
• Lengthscale dependence of dynamic four-point susceptibilities in glass formers
• Unexpected drop of dynamical heterogeneities in colloidal suspensions approaching the jamming transition
• Pacman percolation: a model for enzyme gel degradation
• Number of distinct sites visited by a subdiffusive random walker

Cited by in corpus (14)

• Particle jumps in structural glasses
• From cage-jump motion to macroscopic diffusion in supercooled liquids
• Dynamic phase coexistence in glass-forming liquids
• Unified percolation scenario for the $\alpha$ and $\beta$ processes in simple glass formers
• Cage-jump motion reveals universal dynamics and non-universal structural features in glass forming liquids
• Softness, anomalous dynamics, and fractal-like energy landscape in model cell tissues
• Differential Variance Analysis of soft glassy materials: a direct method to quantify and visualize dynamic heterogeneities
• Connecting short and long time dynamics in hard-sphere-like colloidal glasses
• Scaling and universality in glass transition
• Driving kinetically constrained models into non-equilibrium steady states: structural and slow transport properties
• Pacman Percolation and the Glass Transition
• Temporal and spatial heterogeneity in aging colloids: a mesoscopic model
• Dynamics in two-dimensional glassy systems of crowded Penrose kites
• Cluster structure and dynamics in gels and glasses