High-pressure study on LaFeAs(O1-xFx) and LaFeAsO delta with different T-c
文献类型：期刊论文
| 作者 | Yi, W ; Zhang, C ; Sun, LL ; Ren, ZA ; Lu, W ; Dong, XL ; Li, ZC ; Che, GC ; Yang, J ; Shen, XL ; Dai, X ; Fang, Z ; Zhou, F ; Zhao, ZX |
| 刊名 | EPL
 |
| 出版日期 | 2008 |
| 卷号 | 84期号:6 |
| 关键词 | LAYERED QUATERNARY COMPOUND 43 K SUPERCONDUCTIVITY CELL RE |
| ISSN号 | 0295-5075 |
| 通讯作者 | Yi, W: Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China. |
| 中文摘要 | We report studies on pressure dependence of superconducting transition temperature (T-c) of LaFeAsO delta (delta < 0.3), LaFeAs(O0.5F0.5) and LaFeAs(O0.89F0.11) samples. In situ resistance measurements under high pressure showed that the Tc of these three compounds increases with pressure initially, reaches a maximum value and then decreases with further increasing pressure, although T-c's at ambient pressure are different. The onset T-c of LaFeAsO delta is similar to 50 K at 1.5 GPa, which is the highest record in La-based oxypnictide system. The significant change in Tc induced by pressure is attributed to the orbital degeneracy and the electron density of state at the Fermi level. Copyright (C) EPLA, 2008 |
| 收录类别 | SCI |
| 资助信息 | National Science Foundation of China [50571111, 10874230, 10734120]; Ministry of Science and Technology of China [2005CB724400, 2006CB601001, 2007CB925002]; EU |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/39396]  |
| 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 | Yi, W,Zhang, C,Sun, LL,et al. High-pressure study on LaFeAs(O1-xFx) and LaFeAsO delta with different T-c[J]. EPL,2008,84(6). |
| APA | Yi, W.,Zhang, C.,Sun, LL.,Ren, ZA.,Lu, W.,...&Zhao, ZX.(2008).High-pressure study on LaFeAs(O1-xFx) and LaFeAsO delta with different T-c.EPL,84(6). |
| MLA | Yi, W,et al."High-pressure study on LaFeAs(O1-xFx) and LaFeAsO delta with different T-c".EPL 84.6(2008). |
入库方式： OAI收割
来源：物理研究所
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