Deviating band symmetries and many-body interactions in a model hole-doped iron pnictide superconductor
文献类型：期刊论文
| 作者 | Wray, LA ; Thomale, R ; Platt, C ; Hsieh, D ; Qian, D ; Chen, GF ; Luo, JL ; Wang, NL ; Hasan, MZ |
| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 2012 |
| 卷号 | 86期号:14 |
| 关键词 | BA0.6K0.4FE2AS2 LAO1-XFXFEAS ORDER |
| ISSN号 | 1098-0121 |
| 通讯作者 | Wray, LA: Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94720 USA. |
| 中文摘要 | We present a polarization-resolved study of the low-energy band structure in the optimally doped iron pnictide superconductor Ba0.6K0.4Fe2As2 (T-c = 37 K) using angle-resolved photoemission spectroscopy. Polarization-contrasted measurements are used to identify and trace all three low-energy holelike bands predicted by local density approximation (LDA) calculations. The photoemitted electrons reveal an inconsistency with LDA-predicted symmetries along the Gamma-X high-symmetry momentum axis, due to unexpectedly strong rotational anisotropy in electron kinetics. We evaluate many-body effects such as Mott-Hubbard interactions, which are likely to underlie the anomaly, and discuss how the observed deviations from LDA band structure affect the energetics of iron pnictide Cooper pairing in the hole-doped regime. |
| 收录类别 | SCI |
| 资助信息 | SITP fellowship by Stanford University; US Department of Energy (DOE) Office of Science, Office of Basic Energy Sciences [DE-AC02-05CH11231, DE-AC02-06CH11357] |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/35896]  |
| 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 | Wray, LA,Thomale, R,Platt, C,et al. Deviating band symmetries and many-body interactions in a model hole-doped iron pnictide superconductor[J]. PHYSICAL REVIEW B,2012,86(14). |
| APA | Wray, LA.,Thomale, R.,Platt, C.,Hsieh, D.,Qian, D.,...&Hasan, MZ.(2012).Deviating band symmetries and many-body interactions in a model hole-doped iron pnictide superconductor.PHYSICAL REVIEW B,86(14). |
| MLA | Wray, LA,et al."Deviating band symmetries and many-body interactions in a model hole-doped iron pnictide superconductor".PHYSICAL REVIEW B 86.14(2012). |
入库方式： OAI收割
来源：物理研究所
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