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 language | English (US) |
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Pages (from-to) | 3267-3272 |
Number of pages | 6 |
Journal | Journal of Applied Physics |
Volume | 84 |
Issue number | 6 |
DOIs | |
State | Published - Sep 15 1998 |
ASJC Scopus subject areas
- Physics and Astronomy(all)