Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9868030 | Physics Letters A | 2005 | 6 Pages |
Abstract
We show that ratchet effects can occur in a glassy media of interacting particles where there is no quenched substrate. We consider simulations of a disordered binary assembly of colloids in which only one species responds to a drive. We apply an asymmetric ac drive that would produce no net dc drift of an isolated overdamped particle. When interacting particles are present, the asymmetric ac drive produces a ratchet effect. A simple model captures many of the results from simulations, including flux reversals as a function of density and temperature.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Physics and Astronomy (General)
Authors
C. Reichhardt, C.J. Olson Reichhardt, M.B. Hastings,