Chemical Synthesis and Magnetic Properties of Nanocrystalline (La0.67-XGdX)Sr0.33MnO3 Using Amorphou

• 作 者: WANG Gui LU Bing ZHANG Shilian
• 机 构: Engineering College, Guangdong Ocean University, Zhanjiang 524088, China;Institute of Solid State Ph
• 出 处: 武汉理工大学学报（材料科学版）（英文版）
• 发表日期: 2007年2期
• 关键词: nanostructures oxides perovskites chemical synthesis magnetic properties

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.