Dynamics of particles and cages in an experimental 2D glass former

Abstract

We investigate the dynamics of a glass forming 2D colloidal mixture and show the existence of collective motions of the particles. We introduce a mean square displacement MSD with respect to the nearest neighbors which shows remarkable deviations from the usual MSD quantifying the individual motion of our particles. Combined with the analysis of the self part of the Van Hove function this indicates a coupled motion of particles with their cage as well as intra cage hopping processes.

Submitted to EPL

References in corpus (7)

• Direct experimental evidence of a growing length scale accompanying the glass transition
• Universal nature of particle displacements close to glass and jamming transitions
• Predicting the long time dynamic heterogeneity in a supercooled liquid on the basis of short time heterogeneities
• The experimental realization of a two-dimensional colloidal model system
• Dynamic Glass Transition in Two Dimensions
• Local fluctuations in the aging of a simple glass
• Partial clustering prevents global crystallization in a binary 2D colloidal glass former

Cited by in corpus (25)

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• Glass elasticity from particle trajectories
• Tests of mode-coupling theory in two dimensions
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• Discontinuous shear modulus determines the glass transition temperature
• Self-subdiffusion in solutions of star-shaped crowders: non-monotonic effects of inter-particle interactions
• Local Density Fluctuation Governs the Divergence of Viscosity underlying Elastic and Hydrodynamic Anomalies in a 2D Glass-Forming Liquid
• Decoupling of translational and rotational diffusion in quasi-2D colloidal fluids
• Glassy dynamics in confinement: Planar and bulk limit of the mode-coupling theory
• Possible Universal Relation Between Short time $\beta$-relaxation and Long time $\alpha$-relaxation in Glass-forming Liquids
• Soft repulsive mixtures under gravity: brazil-nut effect, depletion bubbles, boundary layering, nonequilibrium shaking
• Aging or DEAD: origin of the non-monotonic response to weak self-propulsion in active glasses
• Nonadditive Interactions Unlock Small-Particle Mobility in Binary Colloidal Monolayers
• Enhanced Long Wavelength Mermin-Wagner Fluctuations in Active Crystals and Glasses
• Characterising the slow dynamics of the swap Monte Carlo algorithm
• Dynamical heterogeneities as fingerprints of a backbone structure in Potts models
• Rearrangements during slow compression of a jammed two-dimensional emulsion
• Recursive Algorithm to the Centroid of Free Area for Inherent Structure and Hopping Motion in Deeply Supercooled Binary Hard Disk Systems
• Entropic crystallization of Brownian squares through pathways governed by orientational dynamics
• Neglecting polydispersity degrades propensity measurements in supercooled liquids
• Does mesoscopic elasticity control viscous slowing down in glassforming liquids?