Stripes, clusters, and nonequilibrium ordering for bidisperse colloids with repulsive interactions
Year: 2007
Type: article
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.
Source: Physical Review E
Authors: C. Reichhardt, C. J. Olson Reichhardt
Institution: Los Alamos National Laboratory
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W1998035106