A new route to synthesize nanosized crystalline of (La0.67-XGdX)Sr0.33MnO3(X=0.05,0.10,0.15,0.20) perovskite-type complex oxides at calcination temperature of 600-1000℃ using the amorphous molecular alloy as precursors was reported.The precursor could be completely decomposed into complex oxide at temperature below 500℃ according to the TGA and DTA results.XRD demonstrates that the decomposed species is composed of perovskite-type structure at calcination temperature of 600℃ for 2 h.The particle size that depends on the calcination temperature of the precursor is in a range of 30-120 nm as determined by transmission electron microscopy (TEM).This method is effective and can be easily quantitatively controlled to synthesize nanosized perovskite-type complex oxides.The magnetic properties of (La0.67-XGdX)Sr0.33MnO3 nanocrystalline were preliminary studied.
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