Articles you may be interested inThe effect of annealing on the structural and magnetic properties of zinc substitutes Ni-ferrite nanocrystals AIP Conf. Proc. 1512, 286 (2013); 10.1063/1.4791023Inter particle interaction in Ni0.5Zn0.5Fe2O4 prepared by self combustion method AIP Conf.Abstract: Mixed ferrite system of com position Ni x Fe 3-x O 4 Where ( x= 1,1.25,1.5,2) (inverse spinel) has been prepared in nano form. Ni and Fe nitrates are mixed and shacked thoughrly, then NaOH has been used as a precipitating agent. Obtained samples were washed by the ionized water and ethanol. Finally dried at 70 o C for one day the ingots have been annealed at different temperatures . XRD and ME spectra have been measured. It was found that the particle size increases by increasing annealing temperature. All samples annealed at T ≤ 650 o C show superparamagnetic effects, Samples annealed at 900,1000 o C exhibit magnetic hyperfine interaction reflecting high magnetic moments.