Effects of A-site doping on microstructure and phase separation of La0.5RE0.2Sr0.3MnO3 (RE=Eu, Ho, Yb, Lu)

IMR OpenIR

	Effects of A-site doping on microstructure and phase separation of La0.5RE0.2Sr0.3MnO3 (RE=Eu, Ho, Yb, Lu)
	B. Z. Sun; L. L. He; F. Luo; C. H. Yan
	2005
发表期刊	Materials Letters
ISSN	0167-577X
卷号	59 期号:12 页码:1507-1510
摘要	Phase separation and microstructure of La0.7Sr0.3MnO3 doped with rare earth elements (Eu, Ho, Yb and Lu) are studied using X-ray diffraction (XRD) and transmission electron microscopy (TEM). Composition and diffraction analyses demonstrate that the ionic radius of doping element plays an important role in the crystalline structure and the lattice constants of the secondary phase. When La 3 is replaced partly by Eu3+ or Ho3+, orthorhombic perovskite structure with space group Pnma is formed due to the distortion Of MnO6 octahedra. Different from the phenomenon observed by Huang et al., however, the hexagonal non-perovskite structure (YbMnO3 and LuMnO3) has appeared when La3+ and Sr2+ are substituted completely by Lu or Yb (c) 2005 Elsevier B.V. All rights reserved.
部门归属	chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. peking univ, coll chem & mol engn, pku hku joint lab rare earth mat & bioinorgan che, beijing 100871, peoples r china.;he, ll (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, peoples r china;llhe@imr.ac.cn
关键词	Ionic Radius Crystalline Structure Lattice Constants Orthorhombic Perovskite Hexagonal Non-perovskite Magnetoresistance Perovskites Films
URL	查看原文
WOS记录号	WOS:000228385500009
引用统计	被引频次：6[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/35041
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	B. Z. Sun,L. L. He,F. Luo,et al. Effects of A-site doping on microstructure and phase separation of La0.5RE0.2Sr0.3MnO3 (RE=Eu, Ho, Yb, Lu)[J]. Materials Letters,2005,59(12):1507-1510.
APA	B. Z. Sun,L. L. He,F. Luo,&C. H. Yan.(2005).Effects of A-site doping on microstructure and phase separation of La0.5RE0.2Sr0.3MnO3 (RE=Eu, Ho, Yb, Lu).Materials Letters,59(12),1507-1510.
MLA	B. Z. Sun,et al."Effects of A-site doping on microstructure and phase separation of La0.5RE0.2Sr0.3MnO3 (RE=Eu, Ho, Yb, Lu)".Materials Letters 59.12(2005):1507-1510.