Study of the magnetic properties of the mixed oxide Fe2O3-Fe2(MoO4)3 in the temperature range 2-300Â K with different compositions

► The weak magnetic properties of Fe2(MoO4)3 can be improved by modification of the composition. ► The resulted changes in the composition are well followed by Rietveld analysis. ►The presence of the superparamagnetism in the system and much higher magnetic susceptibilities, compared to those reported, are observed in the Fe-rich iron(III) molybdate.