Magnetoresistance and magnetic properties in amorphous Fe-based wires

Abstract The longitudinal and transverse magnetoresistances in amorphous Fe 77.5 Si 7.5 B 15 wires are studied at different values of the DC-bias currents in order to clarify the mechanism of the magnetization according to a ‘core-shell’ domain model. The role of closure domain structures in the magnetization process of the wires is analysed. Moreover, the effects of the Joule heating on the internal stresses, introduced during the rapid quenching in the sample preparation, are examined.