Pure spin current generation with photogalvanic effect in graphene interconnect junctions
文献类型：期刊论文
| 作者 | Zhou, Yan-Hong4; Yu, Shaohui3; Li, Yuejun4; Luo, Xin4; Zheng, Xiaohong1,4,5 ; Zhang, Lei2,5
|
| 刊名 | NANOPHOTONICS
 |
| 出版日期 | 2021-04-01 |
| 卷号 | 10 |
| ISSN号 | 2192-8606 |
| 关键词 | density functional theory graphene photon pure spin current spintronics |
| DOI | 10.1515/nanoph-2020-0646 |
| 通讯作者 | Zheng, Xiaohong(xhzheng@theory.issp.ac.cn) ; Zhang, Lei(zhanglei@sxu.edu.cn) |
| 英文摘要 | We investigate the photovoltaic behaviors of magnetic graphene interconnect junctions, which are constructed by zigzag graphene nanoribbons (ZGNRs), with the aim to produce pure spin current by photogalvanic effect (PGE). Two kinds of interconnect junctions are designed by connecting two 6-ZGNR with a carbon hexagon (C6) and a carbon tetragon (C4), respectively. It is found that zero charge current is produced under irradiation of light in both structures due to the presence of spatial inversion symmetry. Nevertheless, behind the zero charge current, net pure spin current is produced in the structure with a C6, but not in the structure with a C4. This difference originates from their different edge state distribution and different spatial inversion symmetry of the spin density. However, interestingly, local edge pure spin current can be obtained in both structures. More importantly, the pure spin current generation is independent of the photon energy, polarization type or polarization angle, suggesting a robust way of generating pure spin current with PGE and new possibility of graphene's applications in spintronics. |
| WOS关键词 | TRANSITION-METAL DICHALCOGENIDES ; 2-DIMENSIONAL MATERIALS ; QUANTUM TRANSPORT ; PHOTOCURRENT ; POLARIZATION ; METALLICITY |
| WOS研究方向 | Science & Technology - Other Topics ; Materials Science ; Optics ; Physics |
| 语种 | 英语 |
| 出版者 | WALTER DE GRUYTER GMBH |
| WOS记录号 | WOS:000642383400007 |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/122348]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Zheng, Xiaohong; Zhang, Lei |
| 作者单位 | 1.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, HFIPS, Hefei 230031, Peoples R China 2.Shanxi Univ, Collaborat Innovat Ctr Extreme Opt, Taiyuan 030006, Peoples R China 3.Hefei Normal Univ, Sch Math & Stat, Hefei 230061, Peoples R China 4.East China Jiao Tong Univ, Coll Sci, Nanchang 330013, Jiangxi, Peoples R China 5.Shanxi Univ, Inst Laser Spect, State Key Lab Quantum Opt & Quantum Opt Devices, Taiyuan 030006, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhou, Yan-Hong,Yu, Shaohui,Li, Yuejun,et al. Pure spin current generation with photogalvanic effect in graphene interconnect junctions[J]. NANOPHOTONICS,2021,10. |
| APA | Zhou, Yan-Hong,Yu, Shaohui,Li, Yuejun,Luo, Xin,Zheng, Xiaohong,&Zhang, Lei.(2021).Pure spin current generation with photogalvanic effect in graphene interconnect junctions.NANOPHOTONICS,10. |
| MLA | Zhou, Yan-Hong,et al."Pure spin current generation with photogalvanic effect in graphene interconnect junctions".NANOPHOTONICS 10(2021). |
入库方式： OAI收割
来源：合肥物质科学研究院
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