As-NMR/NQR study of pressure-induced superconductivity in CaFe2As2
文献类型：期刊论文
| 作者 | Kawasaki, S ; Oka, T ; Tabuchi, T ; Wang, XF ; Chen, XH ; Zheng, GQ |
| 刊名 | JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
 |
| 出版日期 | 2011 |
| 卷号 | 72期号:5页码:501 |
| 关键词 | SPIN-SINGLET SUPERCONDUCTIVITY UNCONVENTIONAL SUPERCONDUCTIVITY ANTIFERROMAGNETIC ORDER GAPS FLUCTUATIONS |
| ISSN号 | 0022-3697 |
| 通讯作者 | Kawasaki, S: Okayama Univ, Dept Phys, Okayama 7008530, Japan. |
| 中文摘要 | As-75-zero-field nuclear magnetic resonance (NMR) and nuclear quadrupole resonance (NQR) measurements are performed on CaFe2As2 under pressure. At P=4.7 and 10.8 kbar, the temperature dependence of nuclear-spin-lattice relaxation rate (1/T-1) measured at tetragonal phase show no coherence peak just below T-c and decrease with decreasing temperature. The superconductivity is of gapless at P=4.7 kbar but evolves to multiple gaps at P=10.8 kbar. We find that the superconductivity appears near a quantum critical point. Both electron correlation and superconductivity disappear in the collapsed tetragonal phase. A systematic study under pressure indicates that electron correlations play a vital role in forming Cooper pairs in this compound. (C) 2010 Elsevier Ltd. All rights reserved. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/33984]  |
| 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 | Kawasaki, S,Oka, T,Tabuchi, T,et al. As-NMR/NQR study of pressure-induced superconductivity in CaFe2As2[J]. JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS,2011,72(5):501. |
| APA | Kawasaki, S,Oka, T,Tabuchi, T,Wang, XF,Chen, XH,&Zheng, GQ.(2011).As-NMR/NQR study of pressure-induced superconductivity in CaFe2As2.JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS,72(5),501. |
| MLA | Kawasaki, S,et al."As-NMR/NQR study of pressure-induced superconductivity in CaFe2As2".JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS 72.5(2011):501. |
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。