Magneto-Impedance in Fe_73.5Cu₁Mo₃Si_13.5B₉ Alloy Ribbons

Giant magneto-impedance (GMI) effects in Fe_73.5Cu₁Mo₃Si_13.5B₉ alloy ribbons have been measured under different external magnetic fields and different ac driving current frequencies. The results show that the longitudinal and the transverse GMI change with the annealing temperature. Based on the classical electromagnetic theory, the difference between the longitudinal and the transverse GMI (R,X,Z) has been discussed in this letter.