Crossover behavior in interface depinning
Abstract
We study the crossover scaling behavior of the height-height correlation function in interface depinning in random media. We analyze experimental data from a fracture experiment and simulate an elastic line model with nonlinear couplings and disorder. Both exhibit a crossover between two different universality classes. For the experiment, we fit a functional form to the universal crossover scaling function. For the model, we vary the system size and the strength of the nonlinear term and describe the crossover between the two universality classes with a multiparameter scaling function. Our method provides a general strategy to extract scaling properties in depinning systems exhibiting crossover phenomena. © 2015 American Physical Society.
Date Published
Journal
Physical Review E - Statistical, Nonlinear, and Soft Matter Physics
Volume
92
Issue
2
URL
https://www.scopus.com/inward/record.uri?eid=2-s2.0-84940846585&doi=10.1103%2fPhysRevE.92.022146&partnerID=40&md5=9dd8539ee9e83f23aec591da394a0a00
DOI
10.1103/PhysRevE.92.022146
Research Area
Group (Lab)
James Sethna Group