Influence of Glass Coating Thickness on MagnetoimpedanceRatio in Co-Based Amorphous Microwires

摘要

The effect of glass coating thickness on the magnetoimpedance in Co-based amorphousmicrowires was studied. The microwires with different thickness of the glass layer were obtained bymeans of etching in hydrofluoric acid solution. It was observed that the value of the external mag-netic field corresponding to the maximum of the impedance decreased with the thickness of theglass layer, whereas the magnetoimpedance ratio did not change significantly. The experimentalresults are interpreted in terms of changes in the radial distribution of the easy magnetization axes.