The effect of grinding on magnetic properties of agglomereted MnFe2O4 nanoparticles

► We studied the effects of grinding on interparticle interactions of MnFe2O4 nanoparticles. ► Critical slowing model used to estimate the interparticle interaction strength. ► The results showed interparticle interactions become weaker by grinding. ► Ac Susceptibility shows the irreversibility of spins decreased by grinding.