Magneto-impedance effect in the tensile stress-annealed Fe-based nanocrystalline alloy

Abstract The magneto-impedance (MI) effect in the tensile stress-annealed Fe-based nanocrystalline Fe 73 Cu 1 Nb 1.5 V 2 Si 13.5 B 9 ribbons is investigated. The position and amplitude of the MI peak vary with the stress which was longitudinally applied during annealing. The maximum MI exists in the sample annealed under the optimal stress of 49 MPa, which is attributed to the good compromise of the well-defined transverse magnetic structure and superior magnetic softness.