Sharp Low-Energy Feature in Single-Particle Spectra due to Forward Scattering in d-Wave Cuprate Superconductors
文献类型：期刊论文
| 作者 | Hong, SH ; Bok, JM ; Zhang, WT ; He, JF ; Zhou, XJ ; Varma, CM ; Choi, HY |
| 刊名 | PHYSICAL REVIEW LETTERS
 |
| 出版日期 | 2014 |
| 卷号 | 113期号:5 |
| ISSN号 | 0031-9007 |
| 通讯作者 | Choi, HY (reprint author), Sungkyunkwan Univ, Dept Phys, Suwon 440746, South Korea. |
| 中文摘要 | There is an enormous interest in the renormalization of the quasiparticle (qp) dispersion relation of cuprate superconductors both below and above the critical temperature T-c because it enables the determination of the fluctuation spectrum to which the qp's are coupled. A remarkable discovery by angle-resolved photoemission spectroscopy (ARPES) is a sharp low-energy feature (LEF) in qp spectra well below the superconducting energy gap but with its energy increasing in proportion to T-c and its intensity increasing sharply below T-c. This unexpected feature needs to be reconciled with d-wave superconductivity. Here, we present a quantitative analysis of ARPES data from Bi2Sr2CaCu2O8+delta (Bi2212) using Eliashberg equations to show that the qp scattering rate due to the forward scattering impurities far from the Cu-O planes is modified by the energy gap below T-c and shows up as the LEF. This is also a necessary step to analyze ARPES data to reveal the spectrum of fluctuations promoting superconductivity. |
| 资助信息 | National Research Foundation (NRF) of Korea [NRF-2013R1A1A2061704]; NSFC [11190022, 11334010, 11374335]; MOST of China (973 programs) [2011CB921703, 2011CBA00110]; [NSF-DMR-1206298] |
| 语种 | 英语 |
| 公开日期 | 2015-04-14 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/59584]  |
| 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 | Hong, SH,Bok, JM,Zhang, WT,et al. Sharp Low-Energy Feature in Single-Particle Spectra due to Forward Scattering in d-Wave Cuprate Superconductors[J]. PHYSICAL REVIEW LETTERS,2014,113(5). |
| APA | Hong, SH.,Bok, JM.,Zhang, WT.,He, JF.,Zhou, XJ.,...&Choi, HY.(2014).Sharp Low-Energy Feature in Single-Particle Spectra due to Forward Scattering in d-Wave Cuprate Superconductors.PHYSICAL REVIEW LETTERS,113(5). |
| MLA | Hong, SH,et al."Sharp Low-Energy Feature in Single-Particle Spectra due to Forward Scattering in d-Wave Cuprate Superconductors".PHYSICAL REVIEW LETTERS 113.5(2014). |
入库方式： OAI收割
来源：物理研究所
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