Anisotropic structure of the order parameter in FeSe0.45Te0.55 revealed by angle-resolved specific heat
文献类型：期刊论文
| 作者 | Zeng, B ; Mu, G ; Luo, HQ ; Xiang, T ; Mazin, II ; Yang, H ; Shan, L ; Ren, C ; Dai, PC ; Wen, HH |
| 刊名 | NATURE COMMUNICATIONS
 |
| 出版日期 | 2010 |
| 卷号 | 1 |
| 关键词 | D-WAVE SUPERCONDUCTORS VORTEX STATE |
| ISSN号 | 2041-1723 |
| 通讯作者 | Wen, HH: Chinese Acad Sci, Inst Phys, Natl Lab Superconduct, Beijing 100190, Peoples R China. |
| 中文摘要 | The central issues for understanding iron (Fe)-based superconductors are the symmetry and structure of the superconducting gap. So far the experimental data and theoretical models have been highly controversial. Some experiments favor two or more constant or nearly constant gaps, others indicate strong anisotropy and yet others suggest gap zeros ('nodes'). A unique method for addressing this issue, and one of very few methods that are bulk and angle resolved, is measuring the electronic-specific heat in a rotating magnetic field. In this study, we present the first such measurement for an Fe-based high-T-c superconductor. We observed a fourfold oscillation of the specific heat as a function of the in-plane magnetic field direction. Our results are consistent with the expectations for an extended s-wave model, with a significant gap anisotropy on the electron pockets and the gap minima along the Gamma M (Fe-Fe bond) direction. |
| 收录类别 | SCI |
| 资助信息 | Natural Science Foundation of China; Ministry of Science and Technology of China [2011CB605900, 2006CB921802]; Chinese Academy of Sciences; Office of the Naval Research; US DOE, BES, through DOE [DE-FG02-05ER46202]; Division of Scientific User Facilities |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/33795]  |
| 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 | Zeng, B,Mu, G,Luo, HQ,et al. Anisotropic structure of the order parameter in FeSe0.45Te0.55 revealed by angle-resolved specific heat[J]. NATURE COMMUNICATIONS,2010,1. |
| APA | Zeng, B.,Mu, G.,Luo, HQ.,Xiang, T.,Mazin, II.,...&Wen, HH.(2010).Anisotropic structure of the order parameter in FeSe0.45Te0.55 revealed by angle-resolved specific heat.NATURE COMMUNICATIONS,1. |
| MLA | Zeng, B,et al."Anisotropic structure of the order parameter in FeSe0.45Te0.55 revealed by angle-resolved specific heat".NATURE COMMUNICATIONS 1(2010). |
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。