Impulsive reverse-magnetization mechanism of weak-field switching in polycrystalline ferrites

We study the internal effect field $H_e$ to gain a better understanding of the applicability of the model of growth of the reverse-magnetization nuclei to the case of pulse magnetization reversal of polycrystalline ferrites in weak fields. It is shown that the dependence of the field $H_e$ on the induction of the magnetized sample, calculated using this model, is in good agreement with experiment.