The phase transition in PrGa(0.95)Mg(0.05)O(3) at elevated temperatures

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	The phase transition in PrGa(0.95)Mg(0.05)O(3) at elevated temperatures
	Z. G. Liu; Z. X. Shen; Z. H. Ni; L. Liu; X. Q. Huang; Z. Lu; Y. Sui; W. H. Su
	2009
发表期刊	Journal of Physics and Chemistry of Solids
ISSN	0022-3697
卷号	70 期号:3-4 页码:533-535
摘要	PrGa(0.95)Mg(0.05)O(3) was synthesized by a standard solid-state technique, having an orthorhombic structure determined from X-ray diffraction (XRD) data at room temperature. At high temperature, an inflection is found on the Ln sigma T vs. 1/T curve at about 550 degrees C. The inflection can also be observed on thermal expansion vs. temperature curve at about 530 degrees C. Furthermore, the number of Raman modes between 200 and 400 cm(-1) decreases and the peak at about 190 cm(-1) weakens at about 450 degrees C. The results indicate a structural transition from orthorhombic to tetrahedral or rhombohedral. (C) 2008 Elsevier Ltd. All rights reserved.
部门归属	[liu, zhiguo; huang, xiqiang; lue, zhe; sui, yu; su, wenhui] harbin inst technol, ctr condensed matter sci & technol, dept phys, harbin 150080, peoples r china. [shen, ze xiang] nanyang technol univ, div phys & appl phys, sch phys & math sci, singapore 637616, singapore. [ni, zhenhua; liu, lei] natl univ singapore, dept phys, fac sci, singapore 117542, singapore. [su, wenhui] chinese acad sci, int ctr mat phys, shenyang 110015, peoples r china.;liu, zg (reprint author), harbin inst technol, ctr condensed matter sci & technol, dept phys, harbin 150080, peoples r china;liuzhiguo@hit.edu.cn suwenhui@hit.edu.cn
关键词	Ceramic Raman Spectroscopy Electrical Conductivity Phase Transitions Thermal Expansion Perovskite-type Oxide Doped Lagao3 Raman-spectroscopy X-ray Conductivity Electrolyte Prgao3
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文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/32140
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Z. G. Liu,Z. X. Shen,Z. H. Ni,et al. The phase transition in PrGa(0.95)Mg(0.05)O(3) at elevated temperatures[J]. Journal of Physics and Chemistry of Solids,2009,70(3-4):533-535.
APA	Z. G. Liu.,Z. X. Shen.,Z. H. Ni.,L. Liu.,X. Q. Huang.,...&W. H. Su.(2009).The phase transition in PrGa(0.95)Mg(0.05)O(3) at elevated temperatures.Journal of Physics and Chemistry of Solids,70(3-4),533-535.
MLA	Z. G. Liu,et al."The phase transition in PrGa(0.95)Mg(0.05)O(3) at elevated temperatures".Journal of Physics and Chemistry of Solids 70.3-4(2009):533-535.