Validation of the model of anhysteretic magnetisation curve of isotropic soft magnetic materials

Abstract

Anhysteretic magnetization curve is the fundamental concept for Jiles-Atheton model of magnetic hysteresis loop. However, this connection between anhysteretic magnetization curve parameters and physical parameters of soft magnetic materials is not obvious. Paper presents the attempt to validate the parameters of anhysteretic magnetization curve for soft magnetic materials—soft Mn-Zn ferrites. On the base of experimental measurements of saturated magnetic hysteresis loops, the parameters of Jiles-Atherton model of anhysteretic magnetization curve were calculated. Parameters were also analysed from the point of view of connection with microscopic parameters of Mn-Zn ferrite structure.