Microstructure tuning of epitaxial BaTiO3 (-) (x) thin films grown using laser molecular-beam epitaxy by varying the oxygen pressure

doi:10.1016/j.tsf.2009.09.103

IMR OpenIR

	Microstructure tuning of epitaxial BaTiO3 (-) (x) thin films grown using laser molecular-beam epitaxy by varying the oxygen pressure
	Zhu, Y. L.; Zheng, S. J.; Chen, D.; Ma, X. L.
通讯作者	Zhu, Y. L.(ylzhu@imr.ac.cn)
	2010-05-03
发表期刊	THIN SOLID FILMS
ISSN	0040-6090
卷号	518 期号:14 页码:3669-3673
摘要	Microstructural properties are found to be variant in the BaTiO3 (- x) films grown on SrTiO3(001) substrate under various oxygen pressures from 2 x 10(-2) Pa to 2 x 10(-5) Pa by laser molecular-beam epitaxy. Transmission electron microscopic studies reveal that the predominant defects in the films change from threading dislocations into (111) planar defects (i.e. stacking faults and nanotwins) by lowering the oxygen pressure. High density of these defects was observed in the BaTiO3 (-) (x) film prepared at the oxygen pressure of 2 x 10(-5) Pa, which shows metallic behavior. The relationships between oxygen pressure, microstructure, and electrical properties are established on the basis of oxygen deficiency. The formation of nanotwins in highly oxygen-deficient BaTiO3 - x epitaxial thin films results from accommodating excess oxygen vacancies induced by lowering oxygen pressure. (C) 2009 Elsevier B.V. All rights reserved.
关键词	BaTiO3-x, oxides Thin films, oxygen pressure, {111} twins, microstructure X-ray diffraction Laser molecular beam epitaxy Transmission electron microscopy
资助者	Chinese Academy of Sciences ; National Natural Science Foundation of China
DOI	10.1016/j.tsf.2009.09.103
收录类别	SCI
语种	英语
资助项目	Chinese Academy of Sciences ; National Natural Science Foundation of China[50871115]
WOS研究方向	Materials Science ; Physics
WOS类目	Materials Science, Multidisciplinary ; Materials Science, Coatings & Films ; Physics, Applied ; Physics, Condensed Matter
WOS记录号	WOS:000278064600013
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：12[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/321006/102587
专题	中国科学院金属研究所
通讯作者	Zhu, Y. L.
作者单位	Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Zhu, Y. L.,Zheng, S. J.,Chen, D.,et al. Microstructure tuning of epitaxial BaTiO3 (-) (x) thin films grown using laser molecular-beam epitaxy by varying the oxygen pressure[J]. THIN SOLID FILMS,2010,518(14):3669-3673.
APA	Zhu, Y. L.,Zheng, S. J.,Chen, D.,&Ma, X. L..(2010).Microstructure tuning of epitaxial BaTiO3 (-) (x) thin films grown using laser molecular-beam epitaxy by varying the oxygen pressure.THIN SOLID FILMS,518(14),3669-3673.
MLA	Zhu, Y. L.,et al."Microstructure tuning of epitaxial BaTiO3 (-) (x) thin films grown using laser molecular-beam epitaxy by varying the oxygen pressure".THIN SOLID FILMS 518.14(2010):3669-3673.