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Reversible and irreversible domain wall movement in Metglas® amorphous ribbons

Research output: Contribution to journalArticle

Author(s)

John Thomas Sirr Irvine, E AMANO, R VALENZUELA

School/Research organisations

Abstract

Magnetization mechanisms in Metglas(R) 2605 ferromagnetic amorphous ribbons have been investigated by Impedance Spectroscopy. At applied fields below 14 mOe, permeability was independent of frequency up to approximately 0.5 MHz, where a relaxation occurs. For higher applied fields, the permeability at low frequencies was a function of applied field. A complex dispersion towards the low field value occurs at approximately 5 kHz. The different character of these two magnetization mechanisms has been demonstrated by means of complex permeability plots. The low field permeability is associated with reversible domain wall movement and the high field mechanism with irreversible domain wall movement.

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Details

Original languageEnglish
Pages (from-to)140-142
Number of pages3
JournalMaterials Science and Engineering: A
Volume133
DOIs
Publication statusPublished - 15 Mar 1991
Event7TH INTERNATIONAL CONF ON RAPIDLY QUENCHED MATERIALS - STOCKHOLM, Sweden
Duration: 13 Aug 199017 Aug 1990

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