Variation of the magnetic domain structure with reversal field (invited)

Rob Woodward, A.M. Lance, Robert Street, Robert Stamps

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)

Abstract

A rate dependence of the magnetic domain structure has been observed in a Pt/Co multilayer. The form of the domain structure as a function of the rate of change of magnetization was studied using nanosecond pulsed magnetic fields. At low fields the magnetization pattern consists of a dendritic like growth of the domains. As the magnitude of the pulse field is increased the patterns change to a more circular structure with smooth boundaries. The change in structure can be quantified and is discussed in terms of a field dependence where different behaviors can be clearly identified. The structure observed results from a narrowing of the distribution of energy barriers to reversal as the field is increased. (C) 2003 American Institute of Physics.
Original languageEnglish
Pages (from-to)6567-6571
JournalJournal of Applied Physics
Volume93
Issue number10
DOIs
Publication statusPublished - 2003

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