Thermodynamic equilibrium studies of nanocrystallite SrTiO3 grain boundaries by high temperature photoelectron spectroscopy

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	Thermodynamic equilibrium studies of nanocrystallite SrTiO3 grain boundaries by high temperature photoelectron spectroscopy
	Liu, ZX ; Kan, X
刊名	SCIENCE IN CHINA SERIES A-MATHEMATICS PHYSICS ASTRONOMY
	2000
卷号	43 期号:1 页码:93
关键词	STRONTIUM-TITANATE ELECTRONIC-STRUCTURE SURFACE-DEFECTS CHEMISTRY
ISSN号	1006-9283
通讯作者	Liu, ZX (reprint author), Chinese Acad Sci, Inst Phys, State Key Lab Surface Phys, POB 603, Beijing 100080, Peoples R China.
中文摘要	Nanostructured strontium titanate (SrTiO3) thin films are studied by high temperature photoelectron spectroscopy and thermal gravimetric analysis. The results indicate that ion migration and redistribution as well as transformation between lattice oxygen and gas phase oxygen take place near the grain boundaries during thermodynamic equilibrium process, which lead to obvious variation of the surface composition with temperature. The lattice oxygen ions migrate from bulk to grain surface with temperature rising up; meanwhile Ti ions also migrate to grain surface and combine with oxygen ions forming Ti-O complex. An opposite process takes place during temperature falling down, but the latter process is much slower than the former one. A primary model is proposed to explain this phenomenon.
收录类别	SCI
语种	英语
公开日期	2013-09-23
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/45778]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Liu, ZX,Kan, X. Thermodynamic equilibrium studies of nanocrystallite SrTiO3 grain boundaries by high temperature photoelectron spectroscopy[J]. SCIENCE IN CHINA SERIES A-MATHEMATICS PHYSICS ASTRONOMY,2000,43(1):93.
APA	Liu, ZX,&Kan, X.(2000).Thermodynamic equilibrium studies of nanocrystallite SrTiO3 grain boundaries by high temperature photoelectron spectroscopy.SCIENCE IN CHINA SERIES A-MATHEMATICS PHYSICS ASTRONOMY,43(1),93.
MLA	Liu, ZX,et al."Thermodynamic equilibrium studies of nanocrystallite SrTiO3 grain boundaries by high temperature photoelectron spectroscopy".SCIENCE IN CHINA SERIES A-MATHEMATICS PHYSICS ASTRONOMY 43.1(2000):93.