Subsolidus phase relations and crystal structures of R-Ca-Cu-O (R = Nd, Sm, Gd, Tm) systems
文献类型：期刊论文
| 作者 | Han, CQ ; Song, GB ; Chen, XL ; Liang, JK ; Rao, GH |
| 刊名 | JOURNAL OF SOLID STATE CHEMISTRY
 |
| 出版日期 | 2003 |
| 卷号 | 173期号:1页码:164 |
| 关键词 | TERNARY-SYSTEM APPROXIMATELY 950-DEGREES-C HIGH-PRESSURE SUPERCONDUCTIVITY DIAGRAM AIR ER COMPATIBILITIES PROPERTY OXIDE |
| ISSN号 | 0022-4596 |
| 通讯作者 | Liang, JK (reprint author), Chinese Acad Sci, Inst Phys, Ctr Condensed Matter Phys, POB 603, Beijing 100080, Peoples R China. |
| 中文摘要 | The subsolidus phase relations of R2O3-CaO-CuO ternary systems (R = Nd, Sm, Gd, Tm) have been investigated by X-ray powder diffraction. All samples were synthesized at about 950degrees in air. There exists a ternary compound Ca14-xRxCu24O41 (x = 4 for R = Nd, Gd and x = 5 for R = Sm) and a ternary solid solution Ca2+xR2-xCu5O10 (R = Nd, Sm, Gd, Tm) with a wide composition range Deltax of about 0.6. The compound Ca14-xRxCu24O41 possesses a layered orthorhombic structure and is isostructural to Sr14-xCaxCu24O41. The lattice parameters a and c of the compound are basically independent of the ionic radius of R, while the lattice parameter b and unit-cell volume V decrease substantially with the decrease of the ionic radii of R. The Ca2+xR2-xCu5O10 solid solution is isostructural to Ca2+xY2-xCu5O10, the structure of which is based on an orthorhombic "NaCuO2-type" subcell containing infinite one-dimensional chains of edge-shared square planar cuprate groups crosslinked by the layered cations Ca and R that locate in the inter-chain tunnels. (C) 2002 Elsevier Science (USA). All rights reserved. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-24 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/53905]  |
| 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 | Han, CQ,Song, GB,Chen, XL,et al. Subsolidus phase relations and crystal structures of R-Ca-Cu-O (R = Nd, Sm, Gd, Tm) systems[J]. JOURNAL OF SOLID STATE CHEMISTRY,2003,173(1):164. |
| APA | Han, CQ,Song, GB,Chen, XL,Liang, JK,&Rao, GH.(2003).Subsolidus phase relations and crystal structures of R-Ca-Cu-O (R = Nd, Sm, Gd, Tm) systems.JOURNAL OF SOLID STATE CHEMISTRY,173(1),164. |
| MLA | Han, CQ,et al."Subsolidus phase relations and crystal structures of R-Ca-Cu-O (R = Nd, Sm, Gd, Tm) systems".JOURNAL OF SOLID STATE CHEMISTRY 173.1(2003):164. |
入库方式： OAI收割
来源：物理研究所
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