Influence of the applied tensile stress on the magnetic properties of current annealed amorphous wires

The dependence of the magnetic parameters as switching field H*, coercive field Hc and reduced remanence mr, on applied tensile stress σa has been studied in current annealed amorphous wires. The switching field increases as σ 1/2a in fully relaxed samples, while in both ‘‘as-quenched’’ and partially relaxed samples the σ 1/2a law holds only at high values of σa. The coercive field increases with σa in a way similar to H* and mr increases up to the saturation value. This behavior can be explained by taking into account the different magnetic regions that have been proposed for these wires.