Magnetization of Amorphous Microwire Systems: FORC Analysis

Remagnetization processes of amorphous glass-coated microwires have been studied using First Order Reversal Curve (FORC) analysis. This method allows us to study the magnetostatic interactions in these samples. The number, shape, size, and location of the peaks in the FORC diagram can provide information about the different remagnetization processes of the microwires and their system. The sign of magnetostriction of the sample strongly influences the type of FORC diagram. The remagnetization process also depends on the mechanical stresses at the ends of the Fe-based microwire. This dependence tends to zero with increasing wire length. For Co-based samples, the effect of the demagnetization factor on the FORC diagram has been described. In addition, the magnetostatic interactions for a system of densely packed microwires with positive magnetostriction are visualized in this work.