Abstract: We have studied the magnetoimpedance (MI) response of near-zero magnetostriction (Co0.95Fe0.05)75Si 10B15 (Co-based) amorphous ribbons (0.50 mm wide, 32 - m thick), thermally treated by current annealing, for different dc current of intensity varying from 440-680 mA during 5 min, was investigated in the frequency range of 10 MHz-1 GHz. It was not observed MI effect in the as-quenched ribbon, while the current annealed ribbons display large MI depending on the current annealing intensity in a similar way to that of the inhomogeneous induced magnetic anisotropy developed by this peculiar thermal treatment.

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