Temperature dependence of magnetic hysteresis of soft ferrites

This paper presents the experimental measurement and numerical simulation of the temperature dependence of magnetic hysteresis of soft ferrites. The experimental results show that the saturation flux density and the saturation field intensity reduce linearly when the temperature increases. It was also found that the normalised limiting hysteresis loops (B/B-s against H/H-s) at different temperatures were identical. The classical scalar Preisach model was modified to simulate the hysteresis loops at different temperatures. The predicted and experimental results are in substantial agreement.