Magnetic-domain structure of Nd2Fe14B permanent magnets

Yimei Zhu, Martha McCartney

Research output: Contribution to journalArticle

22 Scopus citations

Abstract

We report our studies of magnetic-domain structure in Nd2Fe14B permanent magnets using advanced transmission and scanning electron microscopy, including Lorentz imaging and electron holography. Domain-wall spacing D was measured as a function of thickness t for thin crystals, and also wall width of 90° and 180° domains; the domain-wall energies were calculated. Orientation and field dependence of the domain configuration and domain-wall behavior were examined in situ under different temperatures and applied fields. Characteristic magnetic structural features unique to corresponding bulk samples, such as reversed spike-domains and undulating domain boundaries, were also investigated.

Original languageEnglish (US)
Pages (from-to)3267-3272
Number of pages6
JournalJournal of Applied Physics
Volume84
Issue number6
DOIs
StatePublished - Sep 15 1998

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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