DEMAGNETIZED-STATE DEPENDENCE OF HENKEL PLOTS .1. THE PREISACH MODEL

The interpretation of interaction through Henkel plots and DELTAm plot s has become popular in recent years; however, the demagnetized state is often not specified. In this paper, the demagnetized state dependen ce of Henkel plots is calculated using the classical Preisach model, t he moving.model, and the complete-moving-hysteresis model. In the calc ulation of the virgin remanence curve, ac, dc+, and dc- demagnetized s tates were used. The resulting collection of Henkel plots contains exa mples of ''up'' and ''down'' deviations from the Wohlfarth line by cha nging the demagnetized state only.