A MODEL FOR THE INTERACTION BETWEEN DOMAIN WALLS AND DEFECT STRUCTURES IN FERROMAGNETIC AMORPHOUS ALLOYS

The results of our preliminary work in the construction of a general micromagnetic model for studying the coercivity in soft ferromagnetic amorphous alloys are presented. In these materials, agglomeration of the free volume during the rapid quenching process leads to short-range stresses that are the main pinning centers for domain walls. We discuss the features of our model and show that, without taking into account magnetoelastic interaction, there is a coercivity associated with the presence of a non-magnetic region.