Macroscopic models of magnetization

Four magnetization models, now considered as classical, are presented: the Stoner-Wolhfarth model, the Jiles-Atherton model, the Globus model, and the Preisach model, The paper describes the methods each model uses to simulat e the magnetization mechanisms, reversible and irreversible processes, majo r and minor loops, and anhysteretic behavior. Improvements and changes are proposed to the Stoner-Wolhfarth and Globus models, The necessary simplifyi ng assumptions define the limits of applicability of the models. The paper concludes with a table of the main characteristics of each model to help a potential user to make a suitable choice.