Subdiffusion and the cage effect studied near the colloidal glass transition

Abstract

The dynamics of a glass-forming material slow greatly near the glass transition, and molecular motion becomes inhibited. We use confocal microscopy to investigate the motion of colloidal particles near the colloidal glass transition. As the concentration in a dense colloidal suspension is increased, particles become confined in transient cages formed by their neighbors. This prevents them from diffusing freely throughout the sample. We quantify the properties of these cages by measuring temporal anticorrelations of the particles' displacements. The local cage properties are related to the subdiffusive rise of the mean square displacement: over a broad range of time scales, the mean square displacement grows slower than linearly in time.

submitted to Chemical Physics, special issue on "Strange Kinetics"

Cited by in corpus (49)

• The Physics of the Colloidal Glass Transition
• On the Rigidity of Amorphous Solids
• Subdiffusion and cage effect in a sheared granular material
• Solution of the dynamics of liquids in the large-dimensional limit
• Activity driven fluctuations in living cells
• Confocal microscopy of colloidal particles: towards reliable, optimum coordinates
• Feedback-Controlled Active Brownian Colloids with Space-Dependent Rotational Dynamics
• On the rigidity of a hard sphere glass near random close packing
• Self-diffusion of Rod-like Viruses Through Smectic Layer
• Colloidal Hard Spheres: Triumphs, Challenges and Mysteries
• From a large-deviations principle to the Wasserstein gradient flow: a new micro-macro passage
• Single Particle Jumps in a Binary Lennard-Jones System Below The Glass Transition
• Simulations of aging and plastic deformation in polymer glasses
• Characterizing anomalous diffusion in crowded polymer solutions and gels over five decades in time with variable-lengthscale fluorescence correlation spectroscopy
• Particle jumps in structural glasses
• Tracer diffusion in a sea of polymers with binding zones: mobile vs frozen traps
• Spatial and temporal dynamical heterogeneities approaching the binary colloidal glass transition
• Anatomy of cage formation in a 2D glass-forming liquid
• A percolation model for slow dynamics in glass-forming materials
• Fast Diffusion of Long Guest Rods in a Lamellar Phase of Short Host Particles
• Sub-diffusion in External Potential: Anomalous hiding behind Normal
• Experimental observation of the marginal glass phase in a colloidal glass
• The structure of colloidosomes with tunable particle density: simulation vs experiment
• Speeding up dynamics by tuning the non-commensurate size of rod-like particles in a smectic phase
• Parallels between the dynamics at the noise-perturbed onset of chaos in logistic maps and the dynamics of glass formation
• Heterogeneous Dynamics in Columnar Liquid Crystals of Parallel Hard Rods
• Diffusion dynamics of supercooled water modeled with the cage-jump motion and hydrogen-bond rearrangement
• Numerical analysis of Pickering emulsion stability: insights from ABMD simulations
• Observation and Characterization of the Vestige of the Jamming Transition in a Thermal 3D System
• On the study of jamming percolation
• Local elastic response measured near the colloidal glass transition
• Diffusive and arrested-like dynamics in currency exchange markets
• A Free Energy Landscape for Cage Breaking of Three Hard Disks
• Trapped by the drift
• When bigger is faster: a self-van Hove analysis of the enhanced self-diffusion of non-commensurate guest particles in smectics
• Shear-Induced Reversibility of quasi-2D Colloids in Presence of Thermal Noise
• Record dynamics of evolving metastable systems: theory and applications
• Surface melting of a colloidal glass
• Collectivity in diffusion of colloidal particles: from effective interactions to spatially correlated noise
• Dynamics of dense hard sphere colloidal systems: a numerical analysis
• Collisional Statistics and Dynamics of 2D Hard-Disk Systems: From Fluid to Solid
• Aging of colloidal gels in microgravity
• Telomeres in Lamin-A Depleted Cells Exhibit Directed Motion and Dynamic Coherence
• Atomic scale structure and dynamical properties of (TeO${}_2$)${}_{1-x}$-(Na${}_2$O)${}_x$ glasses through first-principles modeling and XRD measurements
• Tracer Particles in Two-Dimensional Elastic Networks Diffuse Logarithmically Slow
• Jump Events in a 3D Edwards-Anderson Spin Glass
• Effective one-component model of binary mixture: molecular arrest induced by the spatially correlated stochastic dynamics
• Classification of COVID-19 anomalous diffusion driven by mean squared displacement
• Amorphous and ordered states of concentrated hard spheres under oscillatory shear