Structural properties and cation ordering in layered hexagonal CaxCoO2
文献类型：期刊论文
| 作者 | Yang, HX ; Shi, YG ; Liu, X ; Xiao, RJ ; Tian, HF ; Li, JQ |
| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 2006 |
| 卷号 | 73期号:1 |
| 关键词 | ELECTRON-DIFFRACTION PHASE-TRANSITIONS COBALT OXIDES LIXCOO2 SODIUM INTERCALATION NA0.5COO2 NAXCOO2 LITHIUM |
| ISSN号 | 1098-0121 |
| 通讯作者 | Yang, HX (reprint author), Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, POB 603, Beijing 100080, Peoples R China. |
| 中文摘要 | A series of CaxCoO2 (0.15 <= x <= 0.40) materials have been prepared by means of an ion exchange reaction from NaxCoO2. Transmission electron microscopy (TEM) measurements revealed a rich variety of structural phenomena resulting from cation ordering, structural distortion, and twinning. Systematic structural analysis, in combination with the experimental data of NaxCoO2 (0.15 <= x <= 0.8) and SrxCoO2 (1.5 <= x <= 0.4) systems, suggests that there are two common well-defined cation ordered states corresponding, respectively, to the orthorhombic superstructure at around x=1/2 and the 3(1/2)ax3(1/2)a superstructure at around x=1/3 in this kind of system. Multiple ordered states, phase separation, and incommensurate structural modulations commonly appear in the materials with 0.33 < x < 0.5. The TEM observations also reveal an additional periodic structural distortion with q(2)=a(*)/2 in materials for x <= 0.35. This structural modulation also appears in the remarkable superconducting phase Na(0.33)CoO(2)center dot 1.3H(2)O. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-24 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/53334]  |
| 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 | Yang, HX,Shi, YG,Liu, X,et al. Structural properties and cation ordering in layered hexagonal CaxCoO2[J]. PHYSICAL REVIEW B,2006,73(1). |
| APA | Yang, HX,Shi, YG,Liu, X,Xiao, RJ,Tian, HF,&Li, JQ.(2006).Structural properties and cation ordering in layered hexagonal CaxCoO2.PHYSICAL REVIEW B,73(1). |
| MLA | Yang, HX,et al."Structural properties and cation ordering in layered hexagonal CaxCoO2".PHYSICAL REVIEW B 73.1(2006). |
入库方式： OAI收割
来源：物理研究所
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