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Colloidal Dynamics on Disordered Substrates
C. Reichhardt, C. J. Olson
Using Langevin simulations we examine driven colloids interacting with quenched disorder. For weak substrates the colloids form an ordered state and depin elastically. For increasi…
Depinning and Dynamics of Systems with Competing Interactions in Quenched Disorder
C. Reichhardt, C. J. Olson, I. Martin +1
We examine the depinning and driven dynamics of a system in which there is a competition between long range Coulomb repulsive and short range attractive interactions. In the absenc…
Vortex Pinball Under Crossed AC Drives in Superconductors with Periodic Pinning Arrays
C. Reichhardt, C. J. Olson
Vortices driven with both a transverse and a longitudinal AC drive which are out of phase are shown to exhibit a novel commensuration-incommensuration effect when interacting with…
Rectification and Phase Locking for Particles on Two Dimensional Periodic Substrates
C. Reichhardt, C. J. Olson, M. B. Hastings
We show that a novel rectification phenomena is possible for overdamped particles interacting with a 2D periodic substrate and driven with a longitudinal DC drive and a circular AC…
Ratchet-Induced Segregation and Transport of Non-Spherical Grains
J. F. Wambaugh, C. Reichhardt, C. J. Olson
We consider through simulations the behavior of elongated grains on a vibrating ratchet-shaped base. We observe differences in layer velocity profile and in net grain velocity for…
Phase-locking of driven vortex lattices with transverse ac-force and periodic pinning
Charles Reichhardt, Alejandro B. Kolton, Daniel Dominguez +1
For a vortex lattice moving in a periodic array we show analytically and numerically that a new type of phase locking occurs in the presence of a longitudinal dc driving force and…