Energy gaps in Bi2Sr2CaCu2O8+delta cuprate superconductors
文献类型：期刊论文
| 作者 | Ren, JK ; Zhu, XB ; Yu, HF ; Tian, Y ; Yang, HF ; Gu, CZ ; Wang, NL ; Ren, YF ; Zhao, SP |
| 刊名 | SCIENTIFIC REPORTS
 |
| 出版日期 | 2012 |
| 卷号 | 2 |
| 关键词 | HIGH-TEMPERATURE SUPERCONDUCTOR TUNNELING SPECTROSCOPY UNDERDOPED BI2SR2CACU2O8+DELTA SINGLE-CRYSTALS DEPENDENCE TRANSITION PSEUDOGAP |
| ISSN号 | 2045-2322 |
| 通讯作者 | Zhao, SP: Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China. |
| 中文摘要 | The relationship between the cuprate pseudogap (Delta(p)) and superconducting gap (Delta(s)) remains an unsolved mystery. Here, we present a temperature-and doping-dependent tunneling study of submicron Bi2Sr2CaCu2O8+delta intrinsic Josephson junctions, which provides a clear evidence that Delta(s) closes at a temperature T-c0 well above the superconducting transition temperature T-c but far below the pseudogap opening temperature T*. We show that the superconducting pairing first occurs predominantly on a limited Fermi surface near the node below T-c0, accompanied by a Fermi arc due to the lifetime effects of quasiparticles and Cooper pairs. The arc length has a linear temperature dependence, and as temperature decreases below T-c it reduces to zero while pairing spreads to the antinodal region of the pseudogap leading to a d-wave superconducting gap on the entire Fermi surface at lower temperatures. |
| 收录类别 | SCI |
| 资助信息 | National Natural Science Foundation of China [10974242, 50825206]; Ministry of Science and Technology of China [2011CBA00106] |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/37305]  |
| 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 | Ren, JK,Zhu, XB,Yu, HF,et al. Energy gaps in Bi2Sr2CaCu2O8+delta cuprate superconductors[J]. SCIENTIFIC REPORTS,2012,2. |
| APA | Ren, JK.,Zhu, XB.,Yu, HF.,Tian, Y.,Yang, HF.,...&Zhao, SP.(2012).Energy gaps in Bi2Sr2CaCu2O8+delta cuprate superconductors.SCIENTIFIC REPORTS,2. |
| MLA | Ren, JK,et al."Energy gaps in Bi2Sr2CaCu2O8+delta cuprate superconductors".SCIENTIFIC REPORTS 2(2012). |
入库方式： OAI收割
来源：物理研究所
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