Helical magnetic structures in magnetostrictive amorphous microwires

Abstract

Surface magnetic structures have been studied in amorphous glass-covered microwires using the magneto-optical technique. Different types of helical structure have been recognized depending on the external conditions. The simulation of the magnetic structure in magnetic cylinder demonstrates dependence of the type of the structure on the value of the magnetostriction coefficient. The performed comparative analysis of experiment and results of the simulation permitted to establish the direct relation between the value of the magnetostriction coefficient and the type of the helical structure.