Magnetization process as a combined function of field and temperature in the product model of hysteresis

Abstract In the product model of hysteresis the magnetization was proposed to be an indirect function of the magnetic field. The reversible paramagnetic and the irreversible hysteretic contributions to the magnetization appeared together as additional terms in the argument of a sigmoid type envelope function. Recent experimental data suggest that this enveloping sigmoid should be the Brillouin function. Therefore it is proposed that the mean-field theory for the temperature dependence can be generalized for the description of the combined field and temperature dependence of magnetization processes.