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

文献类型:期刊论文

作者B. Z. Sun ; L. L. He ; F. Luo ; C. H. Yan
刊名Materials Letters
出版日期2005
卷号59期号:12页码:1507-1510
关键词ionic radius crystalline structure lattice constants orthorhombic perovskite hexagonal non-perovskite magnetoresistance perovskites films
ISSN号0167-577X
中文摘要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.
原文出处://WOS:000228385500009
公开日期2012-04-14
源URL[http://ir.imr.ac.cn/handle/321006/35041]  
专题金属研究所_中国科学院金属研究所
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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.

入库方式: OAI收割

来源:金属研究所

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