Microstructure of Epitaxial La0.7Ca0.3MnO3 Thin Films Deposited by Direct Current Magnetron Sputtering on LaAlO3 Substrate

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	Microstructure of Epitaxial La0.7Ca0.3MnO3 Thin Films Deposited by Direct Current Magnetron Sputtering on LaAlO3 Substrate
	Wang, Mingguang 1; Ye, Hengqiang 2
通讯作者	Wang, Mingguang(wangmg@imp.neu.edu.cn)
	2009-05-01
发表期刊	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN	1005-0302
卷号	25 期号:3 页码:336-340
摘要	Transmission electron microscopy (TEM) and high resolution electron microscopy (HREM) have been used to study the microstructural properties of La0.7Ca0.3MnO3 films on (001) LaAlO3 substrates prepared by direct current magnetron sputtering technique. The as-grown thin films with different thickness are perfectly coherent with the substrates. The film suffers a tetragonal deformation in the area near the interface between the-film and the substrate. With increasing thickness, the film is partially relaxed. It was found that La0.7Ca0.3MnO3 films consist of two types of oriented domains described as: (1) (110)(f)[001](f)parallel to(001)(s)[100](s) and (1 (1) over bar0)(f)[001](f)parallel to(001)(s)[100](s) and (2) (110)(f)[001](f)parallel to(001)(s)[010](s) and (1 (1) over bar0)(f)[001](f)//(001)(s)[010](s). Upon annealing, the film is relaxed by the formation of misfit dislocations. Other than misfit dislocations, two types of threading dislocations with Burgers vector of < 100 > and < 110 > were also identified.
关键词	Colossal magnetoresistance Microstructure Film Dislocation
资助者	National Natural Science Foundation of China
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[50572013]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000266847000007
出版者	JOURNAL MATER SCI TECHNOL
引用统计	被引频次：1[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/321006/96620
专题	中国科学院金属研究所
通讯作者	Wang, Mingguang
作者单位	1.Northeastern Univ, Dept Sci, Shenyang 110004, Peoples R China 2.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	Wang, Mingguang,Ye, Hengqiang. Microstructure of Epitaxial La0.7Ca0.3MnO3 Thin Films Deposited by Direct Current Magnetron Sputtering on LaAlO3 Substrate[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2009,25(3):336-340.
APA	Wang, Mingguang,&Ye, Hengqiang.(2009).Microstructure of Epitaxial La0.7Ca0.3MnO3 Thin Films Deposited by Direct Current Magnetron Sputtering on LaAlO3 Substrate.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,25(3),336-340.
MLA	Wang, Mingguang,et al."Microstructure of Epitaxial La0.7Ca0.3MnO3 Thin Films Deposited by Direct Current Magnetron Sputtering on LaAlO3 Substrate".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 25.3(2009):336-340.