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Tuning a zigzag SiC nanoribbon as a thermal spin current generator

文献类型：期刊论文

作者Jiang, Peng1,2; Tao, Xixi1,2; Hao, Hua1; Song, Lingling3; Zheng, Xiaohong1,2; Zhang, Lei4,5; Zeng, Zhi1,2
刊名2D MATERIALS
出版日期2017-09-01
卷号4期号:3页码:1-10
关键词Spin Current Quantum Transport Spin-dependent Seebeck Effect Thermopower
DOI10.1088/2053-1583/aa74a2
文献子类Article
英文摘要Quantum transport and spin current in a zigzag SiC nanoribbon device under a thermal gradient are investigated theoretically within the framework of the Landauer-Buttiker formalism using a first-principles technique. It is found that the edge state transport channels can be turned off or kept open by specific edge doping, and different spin channels can be controlled separately. Interestingly, by replacing an edge C atom with a B atom and an edge Si atom with a P atom in the scattering region, a Seebeck thermopower with different signs for different spins and a finite conductance for both spins can be obtained in the linear response regime. The subsequent thermoelectric field drives electrons of different spin channels in opposite directions, which leads unambiguously to a spin current. More importantly, by tuning the chemical potential and working temperature, pure spin current can be achieved. This provides a promising two-dimensional candidate system for producing pure spin current via the spin-dependent Seebeck effect.
WOS关键词GRAPHENE NANORIBBONS ; HALF-METALLICITY
WOS研究方向Materials Science
语种英语
WOS记录号WOS:000403656100001
资助机构National Science Foundation of China(11574318 ; National Science Foundation of China(11574318 ; National Science Foundation of China(11574318 ; National Science Foundation of China(11574318 ; Major/Innovative Program of Development Foundation of Hefei Center for Physical Science and Technology(2016FXCX003) ; Major/Innovative Program of Development Foundation of Hefei Center for Physical Science and Technology(2016FXCX003) ; Major/Innovative Program of Development Foundation of Hefei Center for Physical Science and Technology(2016FXCX003) ; Major/Innovative Program of Development Foundation of Hefei Center for Physical Science and Technology(2016FXCX003) ; 11374301 ; 11374301 ; 11374301 ; 11374301 ; 21503061 ; 21503061 ; 21503061 ; 21503061 ; U1230202) ; U1230202) ; U1230202) ; U1230202) ; National Science Foundation of China(11574318 ; National Science Foundation of China(11574318 ; National Science Foundation of China(11574318 ; National Science Foundation of China(11574318 ; Major/Innovative Program of Development Foundation of Hefei Center for Physical Science and Technology(2016FXCX003) ; Major/Innovative Program of Development Foundation of Hefei Center for Physical Science and Technology(2016FXCX003) ; Major/Innovative Program of Development Foundation of Hefei Center for Physical Science and Technology(2016FXCX003) ; Major/Innovative Program of Development Foundation of Hefei Center for Physical Science and Technology(2016FXCX003) ; 11374301 ; 11374301 ; 11374301 ; 11374301 ; 21503061 ; 21503061 ; 21503061 ; 21503061 ; U1230202) ; U1230202) ; U1230202) ; U1230202)
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/31906]  
专题合肥物质科学研究院_中科院固体物理研究所
作者单位1.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Peoples R China
2.Univ Sci & Technol China, Hefei 230026, Peoples R China
3.Hefei Univ Technol, Sch Elect Sci & Appl Phys, Hefei 230009, Peoples R China
4.Shanxi Univ, Inst Laser Spect, State Key Lab Quantum Opt & Quantum Opt Devices, Taiyuan 030006, Peoples R China
5.Shanxi Univ, Collaborat Innovat Ctr Extreme Opt, Taiyuan 030006, Peoples R China
推荐引用方式
GB/T 7714		 Jiang, Peng,Tao, Xixi,Hao, Hua,et al. Tuning a zigzag SiC nanoribbon as a thermal spin current generator[J]. 2D MATERIALS,2017,4(3):1-10.
APA Jiang, Peng.,Tao, Xixi.,Hao, Hua.,Song, Lingling.,Zheng, Xiaohong.,...&Zeng, Zhi.(2017).Tuning a zigzag SiC nanoribbon as a thermal spin current generator.2D MATERIALS,4(3),1-10.
MLA Jiang, Peng,et al."Tuning a zigzag SiC nanoribbon as a thermal spin current generator".2D MATERIALS 4.3(2017):1-10.

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来源：合肥物质科学研究院

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