Microstructure of epitaxial La0.7Ca0.3MnO3 thin films grown on LaAlO3 and SrTiO3
文献类型：期刊论文
| 作者 | Lu, CJ ; Wang, ZL ; Kwon, C ; Jia, QX |
| 刊名 | JOURNAL OF APPLIED PHYSICS
 |
| 出版日期 | 2000 |
| 卷号 | 88期号:7页码:4032 |
| 关键词 | 3-DIMENSIONAL STRAIN STATES LOW-FIELD MAGNETORESISTANCE PULSED-LASER DEPOSITION COLOSSAL MAGNETORESISTANCE GIANT MAGNETORESISTANCE DOMAIN-STRUCTURE MAGNETIC-ANISOTROPY DOUBLE-EXCHANGE MAGNETOTRANSPORT LA1-XSRXMNO3 |
| ISSN号 | 0021-8979 |
| 通讯作者 | Lu, CJ: Chinese Acad Sci, Ctr Condensed Matter, Beijing Lab Electron Microscopy, POB 2724, Beijing 100080, Peoples R China. |
| 中文摘要 | Epitaxial La0.7Ca0.3MnO3 (LCMO) thin films of a thickness similar to 170 nm were grown on (001) LaAlO3 (LAO) and (001) SrTiO3 (STO) substrates by pulsed laser deposition. Transmission electron microscopy and associated techniques have been applied to investigate the microstructures introduced by lattice mismatch that are responsible for the observed differences in properties between these two films. Numerous secondary phase rods were observed in both films. For the LCMO/LAO film, Ca-deficient secondary-phase rods originated in the film after a thickness of about 25 nm and were found to be responsible for relieving in-plane compressive stress during the island growth. In the case of STO substrate, however, almost all of secondary-phase rods initiated at the film-substrate interface. The lattice mismatch between LCMO and STO is relaxed into regions of good coherent fit separated by such secondary phases, possibly resulting from interfacial reaction. The two types of substrates lead to the formation of two different crystallographic domain structures in the LCMO films. The film on LAO exhibits an almost pure [110] out-of-plane texture with 90 degrees domains in plane. In contrast, the film grown on STO consists of mixed domains of [001] and [110] orientations and is dominated by [001] texture. (C) 2000 American Institute of Physics. [S0021-8979(00)03620-3]. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-18 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/42116]  |
| 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 | Lu, CJ,Wang, ZL,Kwon, C,et al. Microstructure of epitaxial La0.7Ca0.3MnO3 thin films grown on LaAlO3 and SrTiO3[J]. JOURNAL OF APPLIED PHYSICS,2000,88(7):4032. |
| APA | Lu, CJ,Wang, ZL,Kwon, C,&Jia, QX.(2000).Microstructure of epitaxial La0.7Ca0.3MnO3 thin films grown on LaAlO3 and SrTiO3.JOURNAL OF APPLIED PHYSICS,88(7),4032. |
| MLA | Lu, CJ,et al."Microstructure of epitaxial La0.7Ca0.3MnO3 thin films grown on LaAlO3 and SrTiO3".JOURNAL OF APPLIED PHYSICS 88.7(2000):4032. |
入库方式： OAI收割
来源：物理研究所
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