文献类型：期刊文献

英文题名：Chemical synthesis and magnetic properties of nanocrystalline (La_0.67-XGd_X)Sr_0.33MnO₃ using amorphous molecular alloy as precursors

作者：Wang, Gui; Lu, Bing; Zhang, Shiliang; Zhao, Lun; Fei, Guangtao; Zhang, Lide; Ma, Yonglin; Li, Baowei

机构：[1]Guangdong Ocean Univ, Coll Engn, Zhanjiang 524088, Peoples R China;[2]Chinese Acad Sci, Inst Solid State Phys, Hefei 230031, Peoples R China;[3]Inner Mongolia Univ Sci & Technol, Mat & Met Coll, Baotou 014010, Peoples R China

年份：2007

卷号：22

期号：2

起止页码：183

外文期刊名：JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION

收录：SCI-EXPANDED(收录号：WOS:000247497900002)、、WOS

语种：英文

外文关键词：nanostructures; oxides; perovskites; chemical synthesis; magnetic properties

外文摘要：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 degrees C using the amorphous molecular alloy as precursors was reported. The precursor could be completely decomposed into complex oxide at temperature below 500 degrees C according to the TGA and DTA results. XRD demonstrates that the decomposed species is composed of perovskite-type structure at calcination temperature of 600 degrees C 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.