Structural modifications and phonon softening in Bi2Sr2Ca1-xRxCu2O8+delta (R = Pr and Gd) single crystals
文献类型：期刊论文
| 作者 | S. J. Feng ; G. Li ; Q. Han ; J. Ma ; L. Shi ; X. F. Sun ; J. Zuo ; X. G. Li |
| 刊名 | Journal of Physics-Condensed Matter
 |
| 出版日期 | 2003 |
| 卷号 | 15期号:17页码:2859-2866 |
| 关键词 | raman-active phonons incommensurate modulation bi bi2sr2cacu2o8+delta superconductivity spectroscopy scattering tc spectra growth |
| ISSN号 | 0953-8984 |
| 中文摘要 | The phonon Raman spectra of Bi2Sr2Ca1-xRxCu2O8+delta (R = Pr and Gd) single crystals are systematically investigated. The experimental results show that the O(2)(Sr)A(1g) mode softens with Pr and Gd doping, while the O(1)(Cu) B-1g mode softens with Pr doping but hardens with Gd doping. The changes of average ionic radius on the Ca site in Bi-based cuprates can account well for the Raman frequency shifts of the O(I)(Cu) mode, but have little influence on the O(2)(Sr) mode. The frequency softening of the O(2)(Sr) mode in Pr- and Gd-doped Bi2212 crystals mainly results from contraction of the BiO bilayers with doping content. The correlation between the O(2)(Sr) mode frequency and the c-axis parameter as well as the incommensurate modulation wavelength is discussed. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/35828]  |
| 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 | S. J. Feng,G. Li,Q. Han,et al. Structural modifications and phonon softening in Bi2Sr2Ca1-xRxCu2O8+delta (R = Pr and Gd) single crystals[J]. Journal of Physics-Condensed Matter,2003,15(17):2859-2866. |
| APA | S. J. Feng.,G. Li.,Q. Han.,J. Ma.,L. Shi.,...&X. G. Li.(2003).Structural modifications and phonon softening in Bi2Sr2Ca1-xRxCu2O8+delta (R = Pr and Gd) single crystals.Journal of Physics-Condensed Matter,15(17),2859-2866. |
| MLA | S. J. Feng,et al."Structural modifications and phonon softening in Bi2Sr2Ca1-xRxCu2O8+delta (R = Pr and Gd) single crystals".Journal of Physics-Condensed Matter 15.17(2003):2859-2866. |
入库方式： OAI收割
来源：金属研究所
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