Simulation of Dynamic Hysteresis and Loss Characteristics of Nanocrystals under High Frequency Triangular Wave Excitation

An improved dynamic hysteresis model for nanocrystal under high frequency triangular wave excitation is proposed in this paper. A new expression of magnetic field strength is derived through Flourier decomposition. The Preisach model is improved by using concentric hysteresis loops during the identification procedure of inverted Everette function. The accuracy of the proposed dynamic hysteresis model is testified by experiments.