Rhythmic cluster generation in strongly driven colloidal dispersions
arXiv:cond-mat/0606738 · doi:10.1103/PhysRevLett.97.038303
Abstract
We study the response of a nematic colloidal dispersion of rods to a driven probe particle which is dragged with high speed through the dispersion perpendicular to the nematic director. In front of the dragged particle, clusters of rods are generated which rhythmically grow and dissolve by rotational motion. We find evidence for a mesoscopic cluster-cluster correlation length, {\em independent} of the imposed drag speed. Our results are based on non-equilibrium Brownian dynamics computer simulations and in line with a dynamical scaling theory.
4 pages, 5 figures, to appear in Phys. Rev. Lett
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Cited by in corpus (5)
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- Viscous Decoupling Transitions for Individually Dragged Particles in Systems with Quenched Disorder
- Colloidal suspensions of C-particles: Entanglement, percolation and microrheology
- Colloidal Lattice Shearing and Rupturing with a Driven Line of Particles
- Microrheology of colloidal suspensions via Dynamic Monte Carlo simulations