Sound velocity in Fe-rich glass covered amorphous wires

The bias magnetic field ( H) dependence of the longitudinal sound velocity ( v) in Fe 77.5Si 7.5B 15 glass covered amorphous wires is reported. The amorphous wires were tested in the as-cast state and after dc current annealing between 5 and 20 mA for 10–30 min. For the glass covered amorphous wires...

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Bibliographic Details
Published in:Journal of non-crystalline solids 2001-07, Vol.287 (1), p.413-416
Main Authors: Chiriac, H., Hristoforou, E., Neagu, Maria, Darie, I., Eugenia Moga, Anca
Format: Article
Language:English
Subjects:
Amorphous and nanocrystalline magnetic materials
quasicrystals
Amorphous and quasicrystalline magnetic materials
Applied sciences
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Exact sciences and technology
Magnetic properties and materials
Magnetomechanical and magnetoelectric effects, magnetostriction
Metals. Metallurgy
Physics
Studies of specific magnetic materials
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Summary:The bias magnetic field ( H) dependence of the longitudinal sound velocity ( v) in Fe 77.5Si 7.5B 15 glass covered amorphous wires is reported. The amorphous wires were tested in the as-cast state and after dc current annealing between 5 and 20 mA for 10–30 min. For the glass covered amorphous wires tested in the as-cast state the bias magnetic field dependence of the sound velocity was insignificant. For current annealed samples a decrease of the sound velocity for the smaller bias magnetic fields was observed. Increasing the annealing temperature, the bias magnetic field corresponding to the v minimum decreased. For about 600 A/m bias magnetic field, the longitudinal sound velocity reaches saturation.
ISSN:0022-3093
1873-4812
DOI:10.1016/S0022-3093(01)00593-2