Figure 4

Fitting to the law of approach to saturation (LAS) and the corresponding values of the goodness of fit (R2) for Ca-substituted ferrite nanoparticles as a function of Ca-substitution contents (0.00 ≤ x ≤ 0.60).
Fitting to the law of approach to saturation (LAS) and the corresponding values of the goodness of fit (R2) for Ca-substituted ferrite nanoparticles as a function of Ca-substitution contents (0.00 ≤ x ≤ 0.60).