Lu-induced orthorhombic phase in polycrystalline La0.7Sr0.3MnO3

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	Lu-induced orthorhombic phase in polycrystalline La0.7Sr0.3MnO3
	B. Z. Sun; L. L. He; F. Luo; C. H. Yan
	2005
发表期刊	Physica B-Condensed Matter
ISSN	0921-4526
卷号	367 期号:1-4 页码:249-254
摘要	Polycrystalline La0.5Lu0.2Sr0.3MnO3 samples prepared by thermal decomposition are investigated by means of electron diffraction and high-resolution transmission electron microscopy. Besides rhombohedral La0.7Sr0.3MnO3 phase (R-phase) and hexagonal LuMnO3 phase (H-phase) reported by Huang, unexpectedly, an orthorhombic lattice (O-phase) with space group Pnma is observed in the interior of R-phase grain. The lattice parameters of the orthorhombic unit cell are a(o) = 5.44 angstrom, b(o) = 7.65 angstrom and c(o) = 5.48 angstrom The formation of O-phase results from a(-)b(+)a(-) type orthorhombic distortion of MnO6 octahedra induced by partial substitution of Lu3+ for La3+. Meanwhile, based on image simulation of the interface between R and O-phases, the atomic bonding on the interface is particularly discussed. (c) 2005 Elsevier B.V. All rights reserved.
部门归属	chinese acad sci, met res inst, shenyang natl lab mat sci, shenyang 110016, peoples r china. peking univ, coll chem & mol engn, pku,state key lab rare earth mat chem & applicat, hku,joint lab rare earth mat & bioinorgan chem, beijing 100871, peoples r china.;he, ll (reprint author), chinese acad sci, met res inst, shenyang natl lab mat sci, wenhua rd 72, shenyang 110016, peoples r china, peoples r china;bzsun@imr.ac.cn llhe@imr.ac.cn
关键词	Orthorhombic Lattice Octahedral Substitution Atomic Bonding La0.7-xluxsr0.3mno3 Perovskites Transport-properties Magnetoresistance Films
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WOS记录号	WOS:000232076000034
引用统计	被引频次：2[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/321006/35039
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. Lu-induced orthorhombic phase in polycrystalline La0.7Sr0.3MnO3[J]. Physica B-Condensed Matter,2005,367(1-4):249-254.
APA	B. Z. Sun,L. L. He,F. Luo,&C. H. Yan.(2005).Lu-induced orthorhombic phase in polycrystalline La0.7Sr0.3MnO3.Physica B-Condensed Matter,367(1-4),249-254.
MLA	B. Z. Sun,et al."Lu-induced orthorhombic phase in polycrystalline La0.7Sr0.3MnO3".Physica B-Condensed Matter 367.1-4(2005):249-254.