Structural modulation and hole distribution in Sr14-xCaxCu24O41
文献类型：期刊论文
| 作者 | Ma, C ; Yang, HX ; Zeng, LJ ; Zhang, Y ; Wang, LL ; Chen, L ; Xiong, R ; Shi, J ; Li, JQ |
| 刊名 | JOURNAL OF PHYSICS-CONDENSED MATTER
 |
| 出版日期 | 2009 |
| 卷号 | 21期号:21 |
| 关键词 | LADDER COMPOUND SR14CU24O41 RAY-ABSORPTION SPECTROSCOPY ELECTRON-ENERGY-LOSS SPIN-LADDER CUO2 CHAINS SUPERCONDUCTIVITY |
| ISSN号 | 0953-8984 |
| 通讯作者 | Li, JQ (reprint author), Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China. |
| 中文摘要 | Structural properties and hole distribution in the spin-ladder compound Sr14-xCaxCu24O41 have been extensively investigated by transmission electron microscopy (TEM). The complex electron diffraction patterns and high-resolution TEM observations reveal a clear incommensurate structural modulation along the c-axis direction attributable to two mismatched sublattices; this modulation strongly depends on hole distribution in the compounds. The fine structures of the O K and Cu L-2,L-3 ionization edges for the Sr14-xCaxCu24O41 compounds recorded under different conditions indicate that more doped holes reside in the chains than the ladders, and that substituting Ca for Sr atoms results in a charge redistribution between the chains and ladders. Based on the experimental findings, the theoretical results, including the partial density of states and optical conductivity spectra calculated by the density functional theory, are also discussed. |
| 收录类别 | SCI |
| 资助信息 | National Science Foundation of China [O7J1091A61, 10674105]; Chinese Academy of Sciences; Ministry of Science and Technology of China |
| 语种 | 英语 |
| 公开日期 | 2013-09-24 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/53318]  |
| 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 | Ma, C,Yang, HX,Zeng, LJ,et al. Structural modulation and hole distribution in Sr14-xCaxCu24O41[J]. JOURNAL OF PHYSICS-CONDENSED MATTER,2009,21(21). |
| APA | Ma, C.,Yang, HX.,Zeng, LJ.,Zhang, Y.,Wang, LL.,...&Li, JQ.(2009).Structural modulation and hole distribution in Sr14-xCaxCu24O41.JOURNAL OF PHYSICS-CONDENSED MATTER,21(21). |
| MLA | Ma, C,et al."Structural modulation and hole distribution in Sr14-xCaxCu24O41".JOURNAL OF PHYSICS-CONDENSED MATTER 21.21(2009). |
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。