Stripes, Clusters, and Nonequilibrium Ordering for Bidisperse Colloids with Repulsive Interactions

Abstract

We show that two-dimensional bidisperse assemblies of colloids with strictly repulsive interactions exhibit stripe, cluster, and partially crystallized states when driven over a quenched random substrate. The nonequilibrium states on a substrate are significantly more ordered than equilibrium states both with and without substrates. A minimum substrate strength is necessary to induce the nonequilibrium pattern formation. Our results suggest that a combination of driving and quenched disorder offers a new approach to controlling pattern formation in colloid mixtures.

4 pages, 4 postscript figures. Version to appear in Phys. Rev. E Rapid Communications

References in corpus (7)

• Nonequilibrium Dynamic Phase Diagram for Vortex Lattices
• Moving glass theory of driven lattices with disorder
• Hall noise and transverse freezing in driven vortex lattices
• Moving Wigner Glasses and Smectics: Dynamics of Disordered Wigner Crystals
• Partial Clustering in Binary Two-Dimensional Colloidal Suspensions
• Reentrance effect in the lane formation of driven colloids
• Comment on "Moving Glass Phase of Driven Lattices"

Cited by in corpus (5)

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• Traveling band formation in feedback-driven colloids
• Disordering Transitions and Peak Effect in Polydisperse Particle Systems
• Negative differential mobility of weakly driven particles in models of glass formers