Incommensurate valence modulation in high-T-c cuprates
文献类型：期刊论文
| 作者 | Peng, LM ; Dong, ZF ; Dong, XL ; Zhao, BR ; Duan, XF ; Zhao, ZX |
| 刊名 | MICRON
 |
| 出版日期 | 2000 |
| 卷号 | 31期号:5页码:551 |
| 关键词 | HIGH-TEMPERATURE SUPERCONDUCTORS X-RAY ABSORPTION OXIDE SUPERCONDUCTORS ELECTRONIC STATES PHASE-SEPARATION LA2CUO4+DELTA MODEL CRYSTAL STRIPES HOLES |
| ISSN号 | 0968-4328 |
| 通讯作者 | Peng, LM: Chinese Acad Sci, Inst Phys, Beijing Lab Electron Microscopy, POB 2724, Beijing 100080, Peoples R China. |
| 中文摘要 | A new ordered structure W' with a lattice parameter (a = 2.05 nm) about three times as large as that of the fundamental face-centered cubic W phase (n = 0.6848 nm) has been found in the Mg-Zn-Y system by means of transmission electron microscopy. The W' and W phases have the cube-to-cube orientation relationship. Moreover, the strong electron diffraction spots of the W' phase showed pseudo-icosahedral symmetry, implying that it is a crystalline approximant of the Mg-Zn-Y icosahedral quasicrystal. In the high-resolution electron microscopic images of the W' phase, Penrose tiles of pentagons and boats with an edge length of a(p) = 0.481 nm can be identified. A binary tile of crown subunit has also been deduced from such a tiling. Translation domains of the W' phase have also been observed and the translation vectors at the domain boundary are: a(p), tau x a(p) and (1 + tau) x a(p), respectively, where (1 + tau) x a(p) equals to the edge length a(l) of the big obtuse rhombus of the W' phase and tau = (1 + root 5)/2, is the golden ratio. (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/311004/39749]  |
| 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 | Peng, LM,Dong, ZF,Dong, XL,et al. Incommensurate valence modulation in high-T-c cuprates[J]. MICRON,2000,31(5):551. |
| APA | Peng, LM,Dong, ZF,Dong, XL,Zhao, BR,Duan, XF,&Zhao, ZX.(2000).Incommensurate valence modulation in high-T-c cuprates.MICRON,31(5),551. |
| MLA | Peng, LM,et al."Incommensurate valence modulation in high-T-c cuprates".MICRON 31.5(2000):551. |
入库方式： OAI收割
来源：物理研究所
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