Dynamic Ordering and Transverse Depinning of a Driven Elastic String in a Disordered Media
arXiv:cond-mat/0103105 · doi:10.1103/PhysRevB.65.094301
Abstract
We examine the dynamics of an elastic string interacting with quenched disorder driven perpendicular and parallel to the string. We show that the string is the most disordered at the depinning transition but with increasing drive partial ordering is regained. For low drives the noise power is high and we observe a 1/f^2 noise signature crossing over to a white noise character with low power at higher drives. For the parallel driven moving string there is a finite transverse critical depinning force with the depinning transition occuring by the formation of running kinks.
4 pages, 4 postscript figures
References in corpus (9)
- Scaling Approach to Calculate Critical Exponents in Anomalous Surface Roughening
- Hall noise and transverse freezing in driven vortex lattices
- Moving Wigner Glasses and Smectics: Dynamics of Disordered Wigner Crystals
- Tunable Charge Density Wave Transport in a Current-Effect Transistor
- Transverse depinning in strongly driven vortex lattices with disorder
- Critical Transverse Forces in Weakly Pinned Driven Vortex Systems
- Force fluctuation in a driven elastic chain
- Friction, order, and transverse pinning of a two-dimensional elastic lattice under periodic and impurity potentials
- Convective Term and Transversely Driven Charge-Density Waves