Driven Depinning in Anisotropic Media

Preprint

1 September 1994

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/9409002

Abstract

We show that the critical behavior of a driven interface, depinned from quenched random impurities, depends on the isotropy of the medium. In anisotropic media the interface is pinned by a bounding (conducting) surface characteristic of a model of mixed diodes and resistors. Different universality classes describe depinning along a hard and a generic direction. The exponents in the latter (tilted) case are highly anisotropic, and obtained exactly by a mapping to growing surfaces. Various scaling relations are proposed in the former case which explain a number of recent numerical observations.

Keywords

SURFACE CHARACTERISTIC
DESCRIBE DEPINNING
CRITICAL BEHAVIOR
ANISOTROPIC MEDIA
DRIVEN DEPINNING
DRIVEN INTERFACE
INTERFACE

All Related Versions

Version 1, 1994-09-01, ArXiv
Published version: Physical Review Letters, 74 (6), 920.

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