Modeling High-Order Ferromagnetic Hysteretic Minor Loops and Spirals Using a Generalized Positive-Feedback Theory

摘要

A generalization of the previously-described positive-feedback theory of first- and second-order reversal curves permits modeling of minor loops of arbitrarily high order $n$ . The validity of the theory is tested by using it to model various types of high-order phenomena $(n geq 3)$, including symmetrical and asymmetrical spirals as well as closed minor loops, in a variety of different hard and soft ferromagnetic materials that exhibit the return-point memory property.