Arrott–Belov–Kouvel (ABK) plot for the determination of spontaneous magnetization from hysteresis loop
(M-H data)
In the ABK plot, M2 is plotted against H/M and the spontaneous magnetization is measured from the intercept of the linear tting of the curve on the Y-axis. ABK plot signies the presence of ferromagnetic interactions and measures the spontaneous magnetization in the sample.