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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)
2007
发表期刊ACTA PHYSICA SINICA
卷号56期号:9页码:5347-5352
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
文章类型Article
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.
关键词X-ray diffraction microstructures strain physical properties
学科领域Physics
研究领域[WOS]Physics ; Physics
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语种英语
研究领域[WOS]Physics ; Physics
WOS类目Physics, Multidisciplinary
WOS记录号WOS:000249165100060
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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.ihep.ac.cn/handle/311005/240026
专题多学科研究中心
作者单位中国科学院高能物理研究所
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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.
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