Modeling the Temperature Dependence of Hysteresis Based on Jiles-Atherton Theory

A temperature-dependent model is necessary in order to understand the behavior of magnetization processes in ferromagnetic materials at different temperatures. In the present study, a physical model based on Jiles-Atherton (JA) theory was developed to study the effects of temperature on magnetic hys...

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Bibliographic Details
Published in:IEEE transactions on magnetics 2009-10, Vol.45 (10), p.3954-3957
Main Authors: Raghunathan, A., Melikhov, Y., Snyder, J.E., Jiles, D.C.
Format: Article
Language:English
Subjects:
Anisotropic magnetoresistance
Cobalt ferrites
Coercive force
Couplings
Curie temperature
Exponents
Ferromagnetic materials
Hysteresis
Jiles-Atherton model
Magnetic domain walls
Magnetic field measurement
Magnetic hysteresis
Magnetic materials
Magnetic susceptibility
Magnetism
Magnetization
Magnetization processes
Mathematical models
modeling
Temperature dependence
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Summary:A temperature-dependent model is necessary in order to understand the behavior of magnetization processes in ferromagnetic materials at different temperatures. In the present study, a physical model based on Jiles-Atherton (JA) theory was developed to study the effects of temperature on magnetic hysteresis. The thermal effects were incorporated through temperature-dependent hysteresis parameters of the existing model, adding critical exponent and Curie temperature as additional parameters. The temperature-dependent JA model was validated against measurements made on substituted cobalt ferrite material, and the results were in good agreement.
ISSN:0018-9464
1941-0069
DOI:10.1109/TMAG.2009.2022744