Siberian Federal University

This article provides a brief literature review on the development of models describing the magnetization process in ferromagnets and the law of the approach to saturation magnetization (Akulov’s law). An analytical approach for estimating the magnitude of effective local (inside the grain) magnetic anisotropy and the parameters of the magnetization autocorrelation function (on the stochastic domain scale) was developed by V. A. Ignatchenko and co-authors and it was called correlation magnetometry. Our experimental results are presented, confirming the applicability of the law of the approach to satu- ration magnetization and the correlation magnetometry method, in particular, to ferromagnetic FeZrN films