Thickness effect on structure and magnetic properties of La0.8Ca0.2MnO3/SrTiO3 films

	Thickness effect on structure and magnetic properties of La0.8Ca0.2MnO3/SrTiO3 films
	Zhang, HD; An, YK; Mai, ZH; Gao, J; Hu, FX; Wang, Y; Jia, QJ; Wang Y(王勇); Jia QJ(贾全杰)
刊名	ACTA PHYSICA SINICA
	2007
卷号	56 期号:9 页码:5347-5352
关键词	X-ray diffraction microstructures strain physical properties
通讯作者	Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100080, Peoples R China ; Univ Hong Kong, Dept Phys, Hong Kong, Hong Kong, Peoples R China ; Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
英文摘要	The thickness dependence of strain and magnetic properties of La-0.8 Ca-0.2 MnO3 ( LCMO) thin films grown on SrTiO3 ( STO) substrates were investigated by X-ray diffraction techniques and magnetic measurements. The results show that all the LCMO films are well oriented in the (001) direction on the (001) STO substrate. The LCMO thin films have a pseudo-cubic structure. With the film thickness increasing, the in-plane lattice parameters decrease while the out-of-plane lattice parameter increases. The lattice parameter a is close to b, but a little smaller than c. The in-plane strain in the film is tensile due to the lattice mismatch between the LCMO film and STO substrate, whereas that out-of-plane is compressive. The LCMO films have a slightly perceptible mosaic structure along the q. direction, and there exists an angular- deviation of about 0.1 degrees between [001](LCMO) and [001](STO). The physical properties of the films strongly depend on the film thickness. With the increase of the film thickness the T-MI is enhanced, and the MR is weakened.
学科主题	Physics
类目[WOS]	Physics, Multidisciplinary
研究领域[WOS]	Physics
原文出处	SCI
语种	英语
WOS记录号	WOS:000249165100060
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/240026]
专题	高能物理研究所_多学科研究中心
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Zhang, HD,An, YK,Mai, ZH,et al. Thickness effect on structure and magnetic properties of La0.8Ca0.2MnO3/SrTiO3 films[J]. ACTA PHYSICA SINICA,2007,56(9):5347-5352.
APA	Zhang, HD.,An, YK.,Mai, ZH.,Gao, J.,Hu, FX.,...&贾全杰.(2007).Thickness effect on structure and magnetic properties of La0.8Ca0.2MnO3/SrTiO3 films.ACTA PHYSICA SINICA,56(9),5347-5352.
MLA	Zhang, HD,et al."Thickness effect on structure and magnetic properties of La0.8Ca0.2MnO3/SrTiO3 films".ACTA PHYSICA SINICA 56.9(2007):5347-5352.