Effect of dipolar interactions for domain wall dynamics in magnetic thin films

Adil Mughal, Lasse Laurson, G. Durin, Stefano Zapperi

Research output: Contribution to journalArticle

14 Citations (SciVal)

Abstract

We study the effect of long-range dipolar forces on the dynamics and morphology of domain walls in magnetic thin films by numerical simulations of the spin-1 random-field Ising model. By studying the size distribution of avalanches of domain-wall motion arising as a response to quasistatic external driving, we observe a crossover from the case dominated by short-range interactions to another universality class where the long-range dipolar forces become important. This crossover is accompanied with a change of the domain-wall morphology from a rough wall to walls with a zigzag structure.
Original languageEnglish
Pages (from-to)228 - 230
JournalIEEE Transactions on Magnetics
Volume46
Issue number2
DOIs
Publication statusPublished - Feb 2010

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