BibTeX
@MISC{Roters08interfacemotion,
author = {L. Roters and S. Lübeck and K. D. Usadel},
title = {INTERFACE MOTION IN DISORDERED FERROMAGNETS},
year = {2008}
}
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Abstract
We consider numerically the depinning transition in the randomfield Ising model. Our analysis reveals that the three and four dimensional model displays a simple scaling behavior whereas the five dimensional scaling behavior is affected by logarithmic corrections. This suggests that d = 5 is the upper critical dimension of the depinning transition in the random-field Ising model. Furthermore, we investigate the so-called creep regime (small driving fields and temperatures) where the interface velocity is given by an Arrhenius law.
Keyphrases
interface motion disordered ferromagnets dimensional model simple scaling logarithmic correction small driving field analysis reveals upper critical dimension arrhenius law interface velocity so-called creep regime randomfield ising model dimensional scaling behavior random-field ising model
