Development of Amorphous Microwires with Improved Magnetic Softness and High Giant Magnetoimpedance Effect

We provide our last results on studies of the annealing influence on the magnetic properties and Giant Magneto-Impedance, GMI, effect of Co-rich microwires. After appropriate annealing, we observed a remarkable GMI ratio improvement up to 735%. Observed high GMI ratio and magnetic softening of studied microwires is discussed in terms of the internal stresses relaxation and the effect of annealing on the magnetostriction coefficient sign and value.