Temperature- and time-dependent Preisach model for a Stoner-Wohlfarth particle system

1 January 1998

journal article
research article
Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Magnetics

Vol. 34 (6) , 3867-3875
https://doi.org/10.1109/20.728296

Abstract

In this paper, a dynamic (time and temperature dependent) Preisach model is described. In the Preisach plane one uses a double well potential distribution calculated with the Stoner-Wohlfarth model. Both static and dynamic interactions for a ultrafine particulate system are taken into account in order to simulate various magnetization processes, such as: field-cooled (FC), zero field-cooled (ZFC), thermo-remanent magnetization (TRM), magnetic relaxation in applied field (MR), and the major hysteresis loop (MHL) as a function of temperature. The results of the simulations are in good qualitative agreement with experimental data obtained for ferromagnetic ultrafine particulate systems.

Keywords

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