Аппроксимация влияния эффективных магнитных параметров на коэрцитивную силу нанокристаллических пленок на основе Fe

Abstract

The magnetization curves and hysteresis loops of Fe, Fe_90N_10, Fe_95Zr_5, Fe_85Zr_5N_10, and Fe_77Zr_7N_16 films were measured for determining coercive field H _c, saturation magnetization M _s, and the rms fluctuation of local magnetic-anisotropy field a ^1/2 H _a of these iron-based materials. A model approximation with empirical second-order polynomial and Pareto chart clearly demonstrates the influence of the grain size, anisotropy field a ^1/2 H _a, and saturation magnetization on the coercive field.