Structural modulation and hole distribution in Sr(14-x)Ca(x)Cu(24)O(41)
文献类型：期刊论文
| 作者 | C. Ma ; H. X. Yang ; L. J. Zeng ; Y. Zhang ; L. L. Wang ; L. Chen ; R. Xiong ; J. Shi ; J. Q. Li |
| 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 |
| 中文摘要 | Structural properties and hole distribution in the spin-ladder compound Sr(14-x)Ca(x)Cu(24)O(41) 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(2,3) ionization edges for the Sr(14-x)Ca(x)Cu(24)O(41) 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. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/32177]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | C. Ma,H. X. Yang,L. J. Zeng,et al. Structural modulation and hole distribution in Sr(14-x)Ca(x)Cu(24)O(41)[J]. Journal of Physics-Condensed Matter,2009,21(21). |
| APA | C. Ma.,H. X. Yang.,L. J. Zeng.,Y. Zhang.,L. L. Wang.,...&J. Q. Li.(2009).Structural modulation and hole distribution in Sr(14-x)Ca(x)Cu(24)O(41).Journal of Physics-Condensed Matter,21(21). |
| MLA | C. Ma,et al."Structural modulation and hole distribution in Sr(14-x)Ca(x)Cu(24)O(41)".Journal of Physics-Condensed Matter 21.21(2009). |
入库方式： OAI收割
来源：金属研究所
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