ShanghaiTech University Knowledge Management System
| Improvement of image-type very-low-energy-electron-diffraction spin polarimeter | |
| 2023-07-01 | |
| 发表期刊 | REVIEW OF SCIENTIFIC INSTRUMENTS
 |
| ISSN | 0034-6748 |
| EISSN | 1089-7623 |
| 卷号 | 94期号:7 |
| DOI | 10.1063/5.0142548 |
| 摘要 | Spin- and angle-resolved photoemission spectroscopy (SARPES) with high efficiency and resolution plays a crucial role in exploring the fine spin-resolved band structures of quantum materials. Here, we report the performance of the SARPES instrument with a second-generation home-made multichannel very-low-energy-electron-diffraction spin polarimeter. Its energy and angular resolutions achieve 7.2 meV and 0.52°, respectively. We present the results of SARPES measurements of Bi(111) film to demonstrate its performance. Combined with the density functional theory calculations, the spin polarization of the bulk states was confirmed by the spin-layer locking caused by the local inversion asymmetry. The surface states at a binding energy of 0.77 eV are found with 1.0 ± 0.11 spin polarization. Better resolutions and stability compared with the first-generation one provide a good platform to investigate the spin-polarized electronic states in materials. © 2023 Author(s). |
| 关键词 | Binding energy Density functional theory Electrons Image enhancement Photoelectron spectroscopy Polarimeters Angle resolved photoemission spectroscopy Energy resolutions High resolution Higher efficiency Low-energy electron diffraction Multi channel Performance Second generation Spin-polarization Very low energy electrons |
| URL | 查看原文 |
| 收录类别 | EI |
| 语种 | 英语 |
| 出版者 | American Institute of Physics Inc. |
| EI入藏号 | 20233014431186 |
| EI主题词 | Spin polarization |
| EI分类号 | 801.4 Physical Chemistry ; 922.1 Probability Theory ; 931.3 Atomic and Molecular Physics ; 931.4 Quantum Theory ; Quantum Mechanics ; 932.1 High Energy Physics ; 941.3 Optical Instruments |
| 原始文献类型 | Journal article (JA) |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/317381 |
| 专题 | 物质科学与技术学院 物质科学与技术学院_特聘教授组_乔山组 |
| 通讯作者 | Qiao, Shan |
| 作者单位 | 1.Center for Excellence in Superconducting Electronics, State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai; 200050, China; 2.Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing; 100049, China; 3.Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai; 201210, China; 4.Department of Physics, State Key Laboratory of Surface Physics, Fudan University, Shanghai; 200433, China; 5.School of Physical Science and Technology, ShanghaiTech University, Shanghai; 201210, China |
| 通讯作者单位 | 物质科学与技术学院 |
| 推荐引用方式 GB/T 7714 | Zha, Heming,Liu, Wenjing,Wang, Deyang,et al. Improvement of image-type very-low-energy-electron-diffraction spin polarimeter[J]. REVIEW OF SCIENTIFIC INSTRUMENTS,2023,94(7). |
| APA | Zha, Heming.,Liu, Wenjing.,Wang, Deyang.,Zhao, Bo.,Shen, Xiaoping.,...&Qiao, Shan.(2023).Improvement of image-type very-low-energy-electron-diffraction spin polarimeter.REVIEW OF SCIENTIFIC INSTRUMENTS,94(7). |
| MLA | Zha, Heming,et al."Improvement of image-type very-low-energy-electron-diffraction spin polarimeter".REVIEW OF SCIENTIFIC INSTRUMENTS 94.7(2023). |
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