Two-band model of Raman scattering on electron-doped high-T(c) superconductors
文献类型：期刊论文
| 作者 | Liu, C. S.; Luo, H. G.; Liu, CS , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China; Wu, W. C.; Xiang, T.
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| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 2006 |
| 卷号 | 73期号:17页码:- |
| 关键词 | High-temperature Superconductor Transport-properties Anisotropy Gap |
| ISSN号 | 1098-0121 |
| 英文摘要 | We have analyzed the B(1g) and B(2g) Raman spectra of electron-doped cuprate superconductors Nd(2-x)Ce(x)CuO(4) and Pr(2-x)Ce(x)CuO(4) using a weakly coupled two-band model. One of these two bands is centered around (+/-pi/2,+/-pi/2) and couples more strongly with the B(2g) mode, while the other is centered around (+/-pi,0) and (0,+/-pi) and couples more strongly with the B(1g) mode. This model explains in a natural way why the B(2g) Raman peak occurs at a higher frequency than the B(1g) one at optimal doping, and how these two peaks change with doping in agreement with experiments. The result thus supports that there are two kinds of quasiparticles in electron-doped cuprates and d(x)(2)-y(2)-wave superconductivity is driven by the holelike band and a proximity effect on the electronlike band. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| 公开日期 | 2012-08-02 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/5991]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 通讯作者 | Liu, CS , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, C. S.,Luo, H. G.,Liu, CS , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China,et al. Two-band model of Raman scattering on electron-doped high-T(c) superconductors[J]. PHYSICAL REVIEW B,2006,73(17):-. |
| APA | Liu, C. S.,Luo, H. G.,Liu, CS , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China,Wu, W. C.,&Xiang, T..(2006).Two-band model of Raman scattering on electron-doped high-T(c) superconductors.PHYSICAL REVIEW B,73(17),-. |
| MLA | Liu, C. S.,et al."Two-band model of Raman scattering on electron-doped high-T(c) superconductors".PHYSICAL REVIEW B 73.17(2006):-. |
入库方式： OAI收割
来源：理论物理研究所
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