Abstract
This paper reports the effect of Mn substitution in (Fe1−xMnx)75P15C10(0 ≤ x ≤ 0.3) amorphous alloys, which is synthesized by rapidly cooled melt spun technique. The magnetic properties of the fabricated ribbons have shown significant changes upon Mn substitution. M-H measurement at room temperature has shown a gradual transition from soft-to-hard magnetic phase with the increase of Mn concentration. The magnetoresistance is found to increase with Mn concentration at room temperature. The ribbons exhibit high effective ac permeability with low magnetic losses in the high frequency regime. The observed magnetic properties suggest that the antiferromagnetic interactions introduced by Mn atoms cause deviations from a pure ferromagnetic structure at low Mn concentrations.
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