Atomic structure and chemistry of a[100] dislocation cores in La2/3Sr1/3MnO3 films
文献类型：期刊论文
| 作者 | Song, Kepeng ; Du, Kui ; Ye, Hengqiang |
| 刊名 | MICRON
 |
| 出版日期 | 2017-05-01 |
| 卷号 | 96页码:72-76 |
| 关键词 | La2/3Sr1/3MnO3 Dislocation STEM EELS Antisite |
| ISSN号 | 0968-4328 |
| 通讯作者 | Du, K (reprint author), Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China. |
| 中文摘要 | Oxide thin films with perovskite structures possess multifunctional properties, while defects in the films usually have significant influences on their physical properties. Here, the atomic structure and chemistry of a[100] dislocation cores in epitaxial La2/3Sr1/3MnO3 films were investigated by aberration-corrected scanning transmission electron microscopy combining with atomically resolved electron energy-loss spectroscopy imaging. The results demonstrated an edge dislocation terminated with Mn columns and significant nonstoichiometry at the dislocation core region. Quantitative analysis using core-loss spectrum indicates that La/Mn and O/Mn ratios are decreased at the dislocation core. Antisite defects with Mn ions at La-sites were directly determined at the dislocation cores with electron energy-loss spectroscopy. The structure of the dislocation core is discussed on the basis of high-angle annular dark-field imaging and electron energy loss spectroscopy results. (C) 2017 Elsevier Ltd. All rights reserved. |
| 学科主题 | Microscopy |
| 收录类别 | SCI |
| 资助信息 | National Science Foundation of China [51521091, 51371177, 51390473] |
| 语种 | 英语 |
| 公开日期 | 2017-08-17 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/78168]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | Song, Kepeng,Du, Kui,Ye, Hengqiang. Atomic structure and chemistry of a[100] dislocation cores in La2/3Sr1/3MnO3 films[J]. MICRON,2017,96:72-76. |
| APA | Song, Kepeng,Du, Kui,&Ye, Hengqiang.(2017).Atomic structure and chemistry of a[100] dislocation cores in La2/3Sr1/3MnO3 films.MICRON,96,72-76. |
| MLA | Song, Kepeng,et al."Atomic structure and chemistry of a[100] dislocation cores in La2/3Sr1/3MnO3 films".MICRON 96(2017):72-76. |
入库方式： OAI收割
来源：金属研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。