Weak Electron-Phonon Coupling and Unusual Electron Scattering of Topological Surface States in Sb(111) by Laser-Based Angle-Resolved Photoemission Spectroscopy
文献类型：期刊论文
| 作者 | Xie, ZJ ; He, SL ; Chen, CY ; Feng, Y ; Yi, HM ; Liang, AJ ; Zhao, L ; Mou, DX ; He, JF ; Peng, YY ; Liu, X ; Liu, Y ; Liu, GD ; Dong, XL ; Yu, L ; Zhang, J ; Zhang, SJ ; Wang, ZM ; Zhang, FF ; Yang, F ; Peng, QJ ; Wang, XY ; Chen, CT ; Xu, ZY ; Zhou, XJ |
| 刊名 | CHINESE PHYSICS LETTERS
 |
| 出版日期 | 2014 |
| 卷号 | 31期号:6 |
| ISSN号 | 0256-307X |
| 通讯作者 | He, SL (reprint author), Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Inst Phys, Beijing 100190, Peoples R China. |
| 中文摘要 | High-resolution laser-based angle-resolved photoemission (ARPES) measurements are carried out on Sb(111) single crystal. Two kinds of Fermi surface sheets are observed, which are derived from the topological surface states: one small hexagonal electron-like Fermi pocket around G point and the other six elongated lobes of hole-like Fermi pockets around the electron pocket. Clear Rashba-type band splitting due to the strong spin-orbit coupling is observed to be anisotropic in the momentum space. Our super-high-resolution ARPES measurements reveal no obvious kink in the surface band dispersions, indicating a weak electron-phonon interaction in the surface states. In particular, the electron scattering rate for these topological surface states is nearly a constant over a large energy window near the Fermi level that is unusual in terms of the conventional picture. |
| 资助信息 | National Natural Science Foundation of China [91021006, 11174346]; National Basic Research Program of China [2011CB921703, 2013CB921700, 2013CB921904] |
| 语种 | 英语 |
| 公开日期 | 2015-04-14 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/59035]  |
| 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 | Xie, ZJ,He, SL,Chen, CY,et al. Weak Electron-Phonon Coupling and Unusual Electron Scattering of Topological Surface States in Sb(111) by Laser-Based Angle-Resolved Photoemission Spectroscopy[J]. CHINESE PHYSICS LETTERS,2014,31(6). |
| APA | Xie, ZJ.,He, SL.,Chen, CY.,Feng, Y.,Yi, HM.,...&Zhou, XJ.(2014).Weak Electron-Phonon Coupling and Unusual Electron Scattering of Topological Surface States in Sb(111) by Laser-Based Angle-Resolved Photoemission Spectroscopy.CHINESE PHYSICS LETTERS,31(6). |
| MLA | Xie, ZJ,et al."Weak Electron-Phonon Coupling and Unusual Electron Scattering of Topological Surface States in Sb(111) by Laser-Based Angle-Resolved Photoemission Spectroscopy".CHINESE PHYSICS LETTERS 31.6(2014). |
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来源：物理研究所
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