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Magnetoimpedance Effect in Nanocrystalline Fe91.5-xZr7BxCu1Al0.5 (x=2, 4, 6, 8) Alloys
Journal of Magnetics, Volume 7, Number 1, 31 Mar 2002, Pages 21-33
Abstract
The magnetoimpedance of Fe91.5-xZr7BxCu1Al0.5 (x=2, 4, 6, 8) alloys has been measured to investigate the influence of structural changes in the nanocrystallization process after thermal treatment. Annealing was performed at temperatures of 350℃, 450℃, and 500℃ for 1 hour in a vacuum. Ultra soft magnetic behavior was observed in the samples annealed at 500℃. The magnetoimpedance ratio and the longitudinal permeability ratio coincided with the softness of the magnetic properties of the thermally treated samples.
Keywords: magnetoimpedance effect; magnetoimpedance ratio (MIR); permeability ratio (PR); nanocrystalline alloy; incremental permeability
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