Theoretical Model of Temperature Dependence of Hysteresis Based on Mean Field Theory

Raghunathan, Arun, Melikhov, Yevgen ORCID: https://orcid.org/0000-0002-9787-5238, Snyder, John Evan and Jiles, David 2010. Theoretical Model of Temperature Dependence of Hysteresis Based on Mean Field Theory. IEEE Transactions on Magnetics 46 (6) , pp. 1507-1510. 10.1109/TMAG.2010.2045351

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Abstract

The magnetization processes in ferromagnetic materials are dependent on temperature. In order to understand thoroughly the behavior of magnetization processes in ferromagnetic materials at different temperatures, a temperature dependent hysteresis model is necessary. In the present study, a physical model based on Jiles-Atherton (JA) theory was developed to study the effects of temperature on magnetic hysteresis. This was achieved through the introduction of temperature dependent hysteresis parameters of the existing model. The material dependent parameters such as Curie temperature and critical exponent have also been added as additional variables to the existing model. The temperature dependent extension of the JA model was validated against measurements made on cation substituted cobalt ferrite material and the results show good agreement between theory and experiment.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Engineering
Subjects:	T Technology > TA Engineering (General). Civil engineering (General)
Uncontrolled Keywords:	Jiles–Atherton (JA) model , magnetic hysteresis , magnetization processes , modeling , temperature
Publisher:	IEEE
ISSN:	0018-9464
Last Modified:	06 Jul 2023 02:19
URI:	https://orca.cardiff.ac.uk/id/eprint/36186

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