中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 合肥物质科学研究院
  3. 中国科学院合肥物质科学研究院
Two-dimensional centrosymmetrical antiferromagnets for spin photogalvanic devices

文献类型：期刊论文

作者Jiang, Peng3,4; Tao, Xixi3,4; Hao, Hua3; Liu, Yushen1; Zheng, Xiaohong2,3,4; Zeng, Zhi3,4
刊名NPJ QUANTUM INFORMATION
出版日期2021-02-04
卷号7
DOI10.1038/s41534-021-00365-7
通讯作者Jiang, Peng(ysliu@cslg.edu.cn) ; Zheng, Xiaohong(xhzheng@theory.issp.ac.cn)
英文摘要Spin-dependent photogalvanic effect (PGE) in low-dimensional magnetic systems has recently attracted intensive attention. Based on first-principle transport calculations and symmetry analyses, we propose a robust scheme to generate pure spin current by PGE in centrosymmetric materials with spin polarization antisymmetry. As a demonstration, the idea is successfully applied to a photoelectric device constructed with a zigzag graphene nanoribbon (ZGNR), which has intrinsic antiferromagnetic coupling between the two edges and spin degenerate band structure. It suggests that spin splitting is not a prerequisite for pure spin current generation. More interestingly, by further introducing external transverse electric fields to the two leads to lift the spin degeneracy, the device may behave multifunctionally, capable of producing fully spin-polarized current or pure spin current, depending on whether the fields in the two leads are parallel or antiparallel. Very importantly, our scheme of pure spin current generation with PGE is not limited to ZGNR and can be extended to other two-dimensional (2D) centrosymmetric magnetic materials with spin polarization antisymmetry, suggesting a promising category of 2D platforms for PGE-based pure spin current generation.
资助项目National Natural Science Foundation of China[11974355] ; National Natural Science Foundation of China[61674022] ; Program of State Key Laboratory of Quantum Optics and Quantum Optics Devices[KF201810]
WOS研究方向Physics
语种英语
出版者NATURE RESEARCH
WOS记录号WOS:000617166300002
资助机构National Natural Science Foundation of China ; Program of State Key Laboratory of Quantum Optics and Quantum Optics Devices
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/120233]  
专题中国科学院合肥物质科学研究院
通讯作者Jiang, Peng; Zheng, Xiaohong
作者单位1.Changshu Inst Technol, Sch Elect & Informat Engn, Suzhou 215000, Peoples R China
2.Shanxi Univ, Inst Laser Spect, State Key Lab Quantum Opt & Quantum Opt Devices, Taiyuan 030006, Peoples R China
3.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, HFIPS, Hefei 230031, Peoples R China
4.Univ Sci & Technol China, Hefei 230026, Peoples R China
推荐引用方式
GB/T 7714		 Jiang, Peng,Tao, Xixi,Hao, Hua,et al. Two-dimensional centrosymmetrical antiferromagnets for spin photogalvanic devices[J]. NPJ QUANTUM INFORMATION,2021,7.
APA Jiang, Peng,Tao, Xixi,Hao, Hua,Liu, Yushen,Zheng, Xiaohong,&Zeng, Zhi.(2021).Two-dimensional centrosymmetrical antiferromagnets for spin photogalvanic devices.NPJ QUANTUM INFORMATION,7.
MLA Jiang, Peng,et al."Two-dimensional centrosymmetrical antiferromagnets for spin photogalvanic devices".NPJ QUANTUM INFORMATION 7(2021).

入库方式： OAI收割

来源：合肥物质科学研究院

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。