Electron-phonon coupling in the superconducting single crystal Rb0.8Fe1.68Se2
文献类型：期刊论文
| 作者 | Xu, B ; Dai, YM ; Han, J ; Wang, K ; Yang, R ; Yang, YX ; Zhang, W ; Xiao, H ; Qiu, XG |
| 刊名 | PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS
 |
| 出版日期 | 2014 |
| 卷号 | 503页码:25 |
| 关键词 | Pnictides and chalcogenides Infrared and Raman spectra Optical properties Phonons |
| ISSN号 | 0921-4534 |
| 通讯作者 | Qiu, XG (reprint author), Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, POB 603, Beijing 100190, Peoples R China. |
| 中文摘要 | The optical properties of the superconducting single crystal Rb0.8Fe1.68Se2 with T-c similar or equal to 31 K have been measured over a wide frequency range in the ab plane. We found that the optical conductivity is dominated by a series of infrared-active phonon modes at low-frequency region as well as several other high-frequency bound excitations. The low-frequency optical conductivity has rather low value and shows quite small Drude-like response, indicating low carriers density in this material. Furthermore, the phonon modes increase continuously in frequency with decreasing temperature; specifically, the phonon mode around 200 cm(-1) shows an enhanced asymmetry effect at low temperatures, suggesting an increasing electron-phonon coupling in this system. (C) 2014 Elsevier B.V. All rights reserved. |
| 资助信息 | Ministry of Science and Technology of China (973) [2012CB821403, 2011CBA00107, 2012CB921302]; Natural Science Foundation of China [11374345, 11104335, 91121004] |
| 语种 | 英语 |
| 公开日期 | 2015-04-14 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/59442]  |
| 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 | Xu, B,Dai, YM,Han, J,et al. Electron-phonon coupling in the superconducting single crystal Rb0.8Fe1.68Se2[J]. PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS,2014,503:25. |
| APA | Xu, B.,Dai, YM.,Han, J.,Wang, K.,Yang, R.,...&Qiu, XG.(2014).Electron-phonon coupling in the superconducting single crystal Rb0.8Fe1.68Se2.PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS,503,25. |
| MLA | Xu, B,et al."Electron-phonon coupling in the superconducting single crystal Rb0.8Fe1.68Se2".PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 503(2014):25. |
入库方式： OAI收割
来源：物理研究所
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