Journal
IEEE TRANSACTIONS ON MAGNETICS
Volume 46, Issue 6, Pages 1507-1510Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TMAG.2010.2045351
Keywords
Jiles-Atherton (JA) model; magnetic hysteresis; magnetization processes; modeling; temperature
Funding
- U.K. Engineering and Physical Sciences Research Council [EP/D057094]
- U.S. National Science Foundation [DMR-0402716]
- Cardiff University, School of Engineering
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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.
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