Imaging the Electron-Boson Coupling in Superconducting FeSe Films Using a Scanning Tunneling Microscope
文献类型：期刊论文
| 作者 | Song, CL ; Wang, YL ; Jiang, YP ; Li, Z ; Wang, LL ; He, K ; Chen, X ; Hoffman, JE ; Ma, XC ; Xue, QK |
| 刊名 | PHYSICAL REVIEW LETTERS
 |
| 出版日期 | 2014 |
| 卷号 | 112期号:5 |
| ISSN号 | 0031-9007 |
| 通讯作者 | Song, CL (reprint author), Chinese Acad Sci, State Key Lab Surface Phys, Inst Phys, Beijing 100190, Peoples R China. |
| 中文摘要 | Scanning tunneling spectroscopy has been used to reveal signatures of a bosonic mode in the local quasiparticle density of states of superconducting Fe Se films The mode appears below T-c as a "dip-hump" feature at energy Omega similar to 4.7k(B)T(c), beyond the superconducting gap Delta. Spectra on strained regions of the Fe Se films reveal simultaneous decreases in Delta and Omega. This contrasts with all previous reports on other high-T-c superconductors, where Delta locally anticorrelates with Omega. A local strong coupling model is found to reconcile the discrepancy well, and to provide a unified picture of the electron-boson coupling in unconventional superconductors. |
| 资助信息 | National Science Foundation; Ministry of Science and Technology of China; Lawrence Golub Fellowship in Harvard University; U.S. National Science Foundation [DMR-0847433]; New York Community Trust-George Merck Fund |
| 语种 | 英语 |
| 公开日期 | 2015-04-14 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/59592]  |
| 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 | Song, CL,Wang, YL,Jiang, YP,et al. Imaging the Electron-Boson Coupling in Superconducting FeSe Films Using a Scanning Tunneling Microscope[J]. PHYSICAL REVIEW LETTERS,2014,112(5). |
| APA | Song, CL.,Wang, YL.,Jiang, YP.,Li, Z.,Wang, LL.,...&Xue, QK.(2014).Imaging the Electron-Boson Coupling in Superconducting FeSe Films Using a Scanning Tunneling Microscope.PHYSICAL REVIEW LETTERS,112(5). |
| MLA | Song, CL,et al."Imaging the Electron-Boson Coupling in Superconducting FeSe Films Using a Scanning Tunneling Microscope".PHYSICAL REVIEW LETTERS 112.5(2014). |
入库方式： OAI收割
来源：物理研究所
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