Percolation model for relaxation in random systems

Ralph Chamberlin, D. N. Haines

Research output: Contribution to journalArticle

65 Citations (Scopus)

Abstract

We have measured the magnetic relaxation of several Au:Fe alloys from 10-5 to 104 sec after removing an applied field. The quality and range of the data are sufficient to demonstrate significant deviations from all functions previously used to characterize the dynamics of similar systems. A simple model, activated relaxation of dispersive excitations on a percolation distribution of finite-sized domains, gives excellent agreement with the measurements and may provide a common link between fundamental excitations and observed behavior in random systems.

Original languageEnglish (US)
Pages (from-to)2197-2200
Number of pages4
JournalPhysical Review Letters
Volume65
Issue number17
DOIs
StatePublished - 1990

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magnetic relaxation
excitation
deviation

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Percolation model for relaxation in random systems. / Chamberlin, Ralph; Haines, D. N.

In: Physical Review Letters, Vol. 65, No. 17, 1990, p. 2197-2200.

Research output: Contribution to journalArticle

Chamberlin, Ralph ; Haines, D. N. / Percolation model for relaxation in random systems. In: Physical Review Letters. 1990 ; Vol. 65, No. 17. pp. 2197-2200.
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