TEM studies on La2-2xCa1+2xMn2O7 (x=0.5 and 0.25)
文献类型：期刊论文
| 作者 | Yu, RC ; Zhu, JL ; Li, SY ; Li, FY ; Zhang, Z ; Jin, CQ ; Voigt-Martin, IG |
| 刊名 | MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
 |
| 出版日期 | 2003 |
| 卷号 | 345期号:1-2页码:344 |
| 关键词 | 2-DIMENSIONAL FERROMAGNET LA2-2XCA1+2XMN2O7 GIANT MAGNETORESISTANCE PHASE-SEPARATION MANGANESE OXIDES MANGANITES LA1-XCAXMNO3 MANGANATES DIAGRAM |
| ISSN号 | 0921-5093 |
| 通讯作者 | Yu, RC (reprint author), Chinese Acad Sci, Beijing High Pressure Res Ctr, Ctr Condensed Matter Phys, Inst Phys,Key Lab Extreme Condit Phys, POB 603, Beijing 100080, Peoples R China. |
| 中文摘要 | The nominal compositions and structures of the compounds La2-2xCa1+2xMn2O7 (x=0.5 and 0.25) prepared by solid-state reaction have been studied by transmission electron microscopy and high-resolution electron microscopy. Besides the observation of the major phase of a two-layer structure in the nominal composition La1.0Ca2.0Mn2O7, the embedded n = 3, n = 4 Ruddlesden-Popper phases and La rich phase in the two-layer structure were observed as defects. No layered structure was observed in the nominal composition La1.5Ca1.5Mn2O7. Instead, a major phase of orthorhombically distorted perovskite, a minor phase of an ideal cubic perovskite, and a small fraction of calcium-oxide were observed in the sample. The coexistence of the orthorhombic phase and ideal cubic perovskite phase, as well as the same orthorhombic phase with perpendicular directions, was observed in the nominal composition La1.5Ca1.5Mn2O7. (C) 2002 Elsevier Science B.V. All rights reserved. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-23 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/44739]  |
| 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 | Yu, RC,Zhu, JL,Li, SY,et al. TEM studies on La2-2xCa1+2xMn2O7 (x=0.5 and 0.25)[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2003,345(1-2):344. |
| APA | Yu, RC.,Zhu, JL.,Li, SY.,Li, FY.,Zhang, Z.,...&Voigt-Martin, IG.(2003).TEM studies on La2-2xCa1+2xMn2O7 (x=0.5 and 0.25).MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,345(1-2),344. |
| MLA | Yu, RC,et al."TEM studies on La2-2xCa1+2xMn2O7 (x=0.5 and 0.25)".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 345.1-2(2003):344. |
入库方式： OAI收割
来源：物理研究所
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