Magnetoimpedance effect in a NiFeMoMn supermalloy ribbon

The magnetoimpedance (MI) effect in NiFeMoMn supermalloy ribbon, as well as the magnetoresistance and magnetoreactance, are investigated as the functions of the dc magnetic field and ac driving current frequency. The longitudinal MI reaches 44% in 65 Oe at 0.2 MHz but the transverse effect is small (<2%). The MI effect is discussed in terms of the magnetic permeability.