Specific-Heat Measurement of a Residual Superconducting State in the Normal State of Underdoped Bi2Sr2-xLaxCuO6+delta Cuprate Superconductors
文献类型：期刊论文
| 作者 | Wen, HH ; Mu, G ; Luo, HQ ; Yang, H ; Shan, L ; Ren, C ; Cheng, P ; Yan, J ; Fang, L |
| 刊名 | PHYSICAL REVIEW LETTERS
 |
| 出版日期 | 2009 |
| 卷号 | 103期号:6 |
| 关键词 | HIGH-TEMPERATURE SUPERCONDUCTORS ELECTRONIC SPECIFIC-HEAT T-C SUPERCONDUCTOR PHASE FLUCTUATIONS PSEUDOGAP ENERGY BI2SR2CACU2O8+DELTA EXCITATIONS CONDENSATE COHERENCE |
| ISSN号 | 0031-9007 |
| 通讯作者 | Wen, HH (reprint author), Chinese Acad Sci, Natl Lab Superconduct, Inst Phys, POB 603, Beijing 100080, Peoples R China. |
| 中文摘要 | We have measured the magnetic field and temperature dependence of specific heat on Bi2Sr2-xLaxCuO6+delta single crystals in wide doping and temperature regions. The superconductivity related specific-heat coefficient gamma(sc) and entropy S-sc are determined. It is found that gamma(sc) has a humplike anomaly at T-c and behaves as a long tail which persists far into the normal state for the underdoped samples, but for the heavily overdoped samples the anomaly ends sharply just near T-c. Interestingly, we found that the entropy associated with superconductivity is roughly conserved when and only when the long tail part in the normal state is taken into account for the underdoped samples, indicating the residual superconductivity above T-c. |
| 收录类别 | SCI |
| 资助信息 | MOST of China [2006CB601000, 2006CB921802] |
| 语种 | 英语 |
| 公开日期 | 2013-09-24 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/52831]  |
| 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 | Wen, HH,Mu, G,Luo, HQ,et al. Specific-Heat Measurement of a Residual Superconducting State in the Normal State of Underdoped Bi2Sr2-xLaxCuO6+delta Cuprate Superconductors[J]. PHYSICAL REVIEW LETTERS,2009,103(6). |
| APA | Wen, HH.,Mu, G.,Luo, HQ.,Yang, H.,Shan, L.,...&Fang, L.(2009).Specific-Heat Measurement of a Residual Superconducting State in the Normal State of Underdoped Bi2Sr2-xLaxCuO6+delta Cuprate Superconductors.PHYSICAL REVIEW LETTERS,103(6). |
| MLA | Wen, HH,et al."Specific-Heat Measurement of a Residual Superconducting State in the Normal State of Underdoped Bi2Sr2-xLaxCuO6+delta Cuprate Superconductors".PHYSICAL REVIEW LETTERS 103.6(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。