A structural model of the orthorhombic Ga7Mn5 derived from its HREM image
文献类型：期刊论文
| 作者 | Wu, JS ; Kuo, KH |
| 刊名 | MICRON
 |
| 出版日期 | 2000 |
| 卷号 | 31期号:5页码:459 |
| 关键词 | DECAGONAL QUASI-CRYSTAL ELECTRON-MICROSCOPY MN QUASICRYSTAL APPROXIMANT PHASE AL3MN DIFFRACTION ALLOYS |
| ISSN号 | 0968-4328 |
| 通讯作者 | Wu, JS: Chinese Acad Sci, Inst Phys, Beijing Lab Electron Microscopy, POB 2724, Beijing 100080, Peoples R China. |
| 中文摘要 | The base-centered orthorhombic approximant Ga7Mn5 (a = 4.547(6) nm, b = 1.255(9) nm, c = 1.482(1) nm) consisting of flattened hexagon and concave octagon (called "crown" in this paper) subunits shown by high-resolution electron microscopy (HREM) was found to coexist with the Ga-Mn decagonal quasicrystal in the Ga58Mn42 alloy. The atomic sites in the flattened hexagon subunit have been deduced recently from a structural study of the orthorhombic Ga-Mn (1/1,1/1) approximant that consists only of the hexagon subunits. Similarly, the atomic sites in the crown subunit have bean deduced from another orthorhombic Ga-Mn (2/1,1/1) approximant consisting only of the crown subunits. A structural model of the orthorhombic Ga7Mn5 can thus be constructed from these structural subunits. There are 332 Ga atoms and 232 Mn atoms in a unit cell, with a composition of Mn41.2Ga58.8, satisfying the symmetry of the space group Bmm2. The simulated electron diffraction patterns, [010] HREM images, and X-ray powder diffraction pattern based on this structural model agrees mainly with the experimental observations. (C) 2000 Elsevier Science Ltd. All rights reserved. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/33248]  |
| 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 | Wu, JS,Kuo, KH. A structural model of the orthorhombic Ga7Mn5 derived from its HREM image[J]. MICRON,2000,31(5):459. |
| APA | Wu, JS,&Kuo, KH.(2000).A structural model of the orthorhombic Ga7Mn5 derived from its HREM image.MICRON,31(5),459. |
| MLA | Wu, JS,et al."A structural model of the orthorhombic Ga7Mn5 derived from its HREM image".MICRON 31.5(2000):459. |
入库方式： OAI收割
来源：物理研究所
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。