Domain wall propagation in Fe-rich glass covered amorphous wires

The domain wall velocity in Fe 77.5Si 7.5B 15 glass covered amorphous wires, before and after glass removal was determined. The domain wall axial velocity linearly increases with driving magnetic field. The driving magnetic field is higher for glass covered amorphous wires than for conventional ones...

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Bibliographic Details
Published in:Journal of magnetism and magnetic materials 2001-05, Vol.226, p.1516-1518
Main Authors: Neagu, Maria, Chiriac, Horia, Hristoforou, Evangelos, Darie, Iulian, Vinai, Franco
Format: Article
Language:English
Subjects:
Amorphous systems—soft magnetic
Amorphous systems—wires
Barkhausen effect
Domain wall motion
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Summary:The domain wall velocity in Fe 77.5Si 7.5B 15 glass covered amorphous wires, before and after glass removal was determined. The domain wall axial velocity linearly increases with driving magnetic field. The driving magnetic field is higher for glass covered amorphous wires than for conventional ones having the same composition. The domain wall velocity increases when the diameter of the metallic core decreases and the critical field of reverse domain nucleation decreases with increasing the wire diameter. After glass removal, the nucleation and drive fields decrease.
ISSN:0304-8853
DOI:10.1016/S0304-8853(01)00025-7