Ferromagnetism in diluted magnetic semiconductors (DMS) has been a subject of great scientific and technological interest for the past few years due to its implications for spintronics, advanced magneto-optics and sensors applications. Our research involves a modified co-precipitation approach that allows controlled growth of Fe3O4/gamma-Fe2O3 nanocrystals within the superparamagnetic and single domains limits by creating the precipitating conditions

Fe3O4/γ-Fe2O3 modified single crystals zeolite LTA and natural clinoptilolite by treatment with urea/FeCl3 aqueous solutions under different experimental conditions were achieved. Our research involves a modified co-precipitation approach for the controlled growth of Fe3O4/γ-Fe2O3 nanocrystals within the superparamagnetic and single domains limits by creating the precipitating conditions with the help of the hydrolysis reaction of the urea. The

Nanoparticles and nanoclusters of FeO(OH)/Fe3O4 have been incorporated by co-precipitation in the clinoptilolite channels. In the present study, we demonstrate the coexistence of paramagnetic and superparamagnetic Fe(III) in clinoptilolite. The bound of trivalent iron in clinoptilolite results in the formation iron oxide nanoclusters in microvoids, and stabilize AlO4 tetrahedral in the aluminosilicate matrix. The resulting non-framework and bound