Abstract
Amorphous Co xFe 1-x-B particles with magnetic softness were fabricated by chemical reduction of metal ions. Fabrication conditions to obtain particles with good magnetic softness are described. Co xFe 1-x-B particles with x= 0.90-0.95 exhibit superb softness because of their nearly zero-magnetostrictive property. The soft properties of the particles are thermally stable compared to other compositions such as Fe-B-P or Co 50 Fe 50 -B. Chains of Co xFe 1-x-B particles with x=0.95 produced in a magnetic field were studied in detail. The high permeability feature associated with the high aspect ratio of the chain shape exhibits only a slight change after annealing up to 400 degrees. The frequency dispersion of initial permeability exhibits two resonance peaks that are ascribed to the shape anisotropy of the chains.
Original language | English |
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Article number | 6332612 |
Pages (from-to) | 2903-2906 |
Number of pages | 4 |
Journal | IEEE Transactions on Magnetics |
Volume | 48 |
Issue number | 11 |
DOIs | |
Publication status | Published - 2012 Oct 29 |
Keywords
- Amorphous particles
- initial permeability
- magnetic softness
- particle chain
- spin resonance
- thermal stability
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Electrical and Electronic Engineering