Abstract

Paper presents the comparison of original Jiles-Atherton model and its modification, proposed by R. Venkataraman, called the bulk ferromagnetic hysteresis model. Due to the fact, that both models utilize the concept of anhysteretic magnetization, bulk magnetic hysteresis model was extended also to anisotropic materials. Comparison was carried out for isotropic Mn-Zn ferrite and for amorphous alloy with strong perpendicular anisotropy. The results indicate, that both models well reproduce the shape of magnetic hysteresis loops, however, some of model’s parameters vary significantly for presented models.

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