Study on magnetic and hyperfine properties of mechanically milled Ni0.4Zn0.6Fe2O4 nanoparticles

•Influence of milling time on magnetic and hyperfine properties of mechnosynthesized nanometric Ni0.4Zn0.6Fe2O4.•Reduction of magnetization in nanosized Ni-Zn ferrites due to spin canting and size effect.•Role of magnetic domain structure in determining the coercivity of nanosized Ni0.4Zn0.6Fe2O4.•Estimation of cation distribution of nanosized Ni0.4Zn0.6Fe2O4 using the results of M-H measurement and infield Mössbauer spectroscopic study.•Memory effect in dc magnetization versus temperature curve.