AC magnetic properties of FeCo nanocomposites

Here we report the AC magnetic properties of soft magnetic nanocomposites made from compaction of Fe/sub 10/Co/sub 90/ nanoparticles. The permeability is constant for low frequencies, but drops off sharply above a characteristic frequency f/sub c/. Above f/sub c/ the coercivity rises steeply and pea...

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Bibliographic Details
Published in:IEEE transactions on magnetics 2000-09, Vol.36 (5), p.3026-3028
Main Authors: Giri, A.K., Chowdary, K.M., Humfeld, K.D., Majetich, S.A.
Format: Article
Language:English
Subjects:
Coercive force
Coercivity
Compaction
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Exact sciences and technology
Fine-particle systems
Frequency
Iron
Low frequencies
Magnetic permeability
Magnetic properties
Magnetic properties and materials
Magnetism
Nanocomposites
Nanoparticles
Permeability
Physics
Small particles and nanoscale materials
Soft magnetic materials
Studies of specific magnetic materials
Temperature
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Summary:Here we report the AC magnetic properties of soft magnetic nanocomposites made from compaction of Fe/sub 10/Co/sub 90/ nanoparticles. The permeability is constant for low frequencies, but drops off sharply above a characteristic frequency f/sub c/. Above f/sub c/ the coercivity rises steeply and peaks. The characteristic frequency is found to increase linearly with temperature.
ISSN:0018-9464
1941-0069
DOI:10.1109/20.908665