Thermal behavior of the initial permeability in soft magnetic nanocrystalline alloys

Research output: Chapter in Book/Report/Conference proceedingChapter

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Abstract

Initial permeability thermograms for soft magnetic nanocrystalline alloys show two characteristic peaks: the first corresponds to the Curie temperature (Tc) of the remaining amorphous phase and the second to the asprecipitated bcc phase. The former one shows a broad distribution and in general shifts with annealing towards lower temperatures compared to the Tc of the as-quenched amorphous state. The latter one is relatively sharp and shifts with annealing towards higher temperatures but disappears before reaching the Tc of the equilibrium bcc phase. The first and second peaks are explained by the effect of the inhomogeneous chemical composition of the remaining amorphous phase and by the superparamagnetic transition of the dipolar (and/or exchange)-coupled bcc nanograins respectively, both changing with the evolution of annealing.

Original languageEnglish
Title of host publicationJournal De Physique. IV : JP
Volume8
Edition2
Publication statusPublished - Jun 1998

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permeability
annealing
thermograms
shift
Curie temperature
chemical composition

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Thermal behavior of the initial permeability in soft magnetic nanocrystalline alloys. / Varga, L.

Journal De Physique. IV : JP. Vol. 8 2. ed. 1998.

Research output: Chapter in Book/Report/Conference proceedingChapter

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