Pairing-fluctuation effect in quasi-two-dimensional superconductivity
文献类型：期刊论文
| 作者 | Yan, XZ |
| 刊名 | INTERNATIONAL JOURNAL OF MODERN PHYSICS B
 |
| 出版日期 | 2003 |
| 卷号 | 17期号:3页码:319 |
| 关键词 | HIGH-TC SUPERCONDUCTIVITY ATTRACTIVE HUBBARD-MODEL TUNNELING SPECTROSCOPY SPIN FLUCTUATIONS BOSE CONDENSATION COOPER PAIRS PSEUDOGAP CROSSOVER GAP BCS |
| ISSN号 | 0217-9792 |
| 通讯作者 | Yan, XZ (reprint author), Chinese Acad Sci, Inst Phys, POB 603, Beijing 100080, Peoples R China. |
| 中文摘要 | We present a self-consistent approach to deal with the pairing-fluctuation effects in quasi-two-dimensional superconducting systems. Besides the Cooper pairs in the Bose-Einstein condensate, there are pairs occupying the excited states, which results in the predominant fluctuations. The low-lying excited states are the collective modes. On the basis of ladder-diagram approximation, we treat the single particles and the pairs on an equal-footing manner. The Green's function of single particles is obtained as an analytic solution to a cubic equation. The bosonic degrees of freedom are relevant to the pseudogap physics in the high-T-c cuprates. The superconducting order parameter and the transition temperature are substantially reduced from the values of the mean-field theory. The calculated phase boundary of superconducting state can reasonably describe the experiment data for cuprates. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-24 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/50559]  |
| 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 | Yan, XZ. Pairing-fluctuation effect in quasi-two-dimensional superconductivity[J]. INTERNATIONAL JOURNAL OF MODERN PHYSICS B,2003,17(3):319. |
| APA | Yan, XZ.(2003).Pairing-fluctuation effect in quasi-two-dimensional superconductivity.INTERNATIONAL JOURNAL OF MODERN PHYSICS B,17(3),319. |
| MLA | Yan, XZ."Pairing-fluctuation effect in quasi-two-dimensional superconductivity".INTERNATIONAL JOURNAL OF MODERN PHYSICS B 17.3(2003):319. |
入库方式： OAI收割
来源：物理研究所
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