Slow magnetic relaxation in iron: A ferromagnetic liquid

Ralph Chamberlin, M. R. Scheinfein

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

The remanent magnetization of single-crystal iron whiskers has been measured from 10-5 to 104 seconds after the removal of an applied field. The observed response is accurately modeled by localized magnon relaxation on a Gaussian size distribution of dynamically correlated domains, virtually identical to the distribution of excitations in glass-forming liquids. When fields of less than 1 oersted are removed, some relaxation occurs before 10-5 second has elapsed; but when larger fields are removed, essentially all of the response can be accounted for by magnon relaxation over the available time window. The model provides a physical picture for the mechanism and observed distribution of Landau-Lifshitz damping parameters.

Original languageEnglish (US)
Pages (from-to)1098-1101
Number of pages4
JournalScience
Volume260
Issue number5111
StatePublished - 1993

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Vibrissae
Normal Distribution
Glass
Iron

ASJC Scopus subject areas

  • General

Cite this

Chamberlin, R., & Scheinfein, M. R. (1993). Slow magnetic relaxation in iron: A ferromagnetic liquid. Science, 260(5111), 1098-1101.

Slow magnetic relaxation in iron : A ferromagnetic liquid. / Chamberlin, Ralph; Scheinfein, M. R.

In: Science, Vol. 260, No. 5111, 1993, p. 1098-1101.

Research output: Contribution to journalArticle

Chamberlin, R & Scheinfein, MR 1993, 'Slow magnetic relaxation in iron: A ferromagnetic liquid', Science, vol. 260, no. 5111, pp. 1098-1101.
Chamberlin, Ralph ; Scheinfein, M. R. / Slow magnetic relaxation in iron : A ferromagnetic liquid. In: Science. 1993 ; Vol. 260, No. 5111. pp. 1098-1101.
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