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Coarsening of Topological Defects in Oscillating Systems with Quenched Disorder | | C. Reichhardt
; C.J. Olson Reichhardt
; | | Date: |
31 May 2005 | | Subject: | Statistical Mechanics; Soft Condensed Matter | cond-mat.stat-mech cond-mat.soft | | Abstract: | Using large scale simulations of interacting particles in two dimensions in the presence of quenched disorder, we examine the coarsening of topological defects when the system is quenched from a disordered regime to an ordered regime by a suddenly changed ac drive. When the quench is performed close to the disorder-order crossover, the defect density decays with time as a power law with alpha = 1/4 to 1/3. For regimes where the dynamical shaking temperature is effectively reduced, we observe a logarithmic decay of the defect density into a grain boundary dominated state. | | Source: | arXiv, cond-mat/0505743 | | Services: | Forum | Review | PDF | Favorites | |
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