Droplet nucleation and domain wall motion in a bounded interval

Robert S Maier, D. L. Stein

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

We study a spatially extended model of noise-induced magnetization reversal: a classical Ginzburg-Landau model, restricted to a bounded interval and perturbed by weak spatiotemporal noise. By adapting the Coleman-Langer approach to false vacuum decay, we determine the dependence of the activation barrier and Kramers rate prefactor on the interval length. As it increases, a transition between activation regimes occurs, at which the prefactor diverges. Similar transitions between activation regimes should occur in many other bistable, spatially extended classical models.

Original languageEnglish (US)
Pages (from-to)270601-270601-4
JournalPhysical Review Letters
Volume87
Issue number27
DOIs
StatePublished - Dec 31 2001

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domain wall
nucleation
activation
intervals
magnetization
vacuum
decay

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  • Physics and Astronomy(all)

Cite this

Droplet nucleation and domain wall motion in a bounded interval. / Maier, Robert S; Stein, D. L.

In: Physical Review Letters, Vol. 87, No. 27, 31.12.2001, p. 270601-270601-4.

Research output: Contribution to journalArticle

Maier, Robert S ; Stein, D. L. / Droplet nucleation and domain wall motion in a bounded interval. In: Physical Review Letters. 2001 ; Vol. 87, No. 27. pp. 270601-270601-4.
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