Hysteresis in particulate recording media. Experiment and simulation with Preisach and Jiles–Atherton models

Abstract

In order to describe the magnetisation processes in particulate media some new variants for the Jiles–Atherton model are developed. The differences between these models and the Preisach model are discussed. Due to the analogy between the parameters of the two model's, the Jiles–Atherton model's parameters may be determined using the Preisach model's identification methods. A good agreement between the simulated and the measured data is observed for the major hysteresis loop but it is no longer good for some more complex magnetisation processes.