On the irreversible susceptibility of a textured Stoner-Wohlfarth ensemble

For models containing both reversible and irreversible magnetization processes the time-dependent irreversible susceptibility and the differentiated remanence curve differ from each other. To demonstrate this, both quantities were calculated for a non-interacting Stoner-Wohlfarth ensemble in dependence on the degree of alignment, the magnitude and the application time of an opposite field. For the differentiated remanence curve at t = 0 s an analytical expression was derived. For general times the calculation was carried out numerically.