Manipulating fully spin-polarized edge currents in graphene ribbon

被引：3
|
作者：
Xu, Lei [1 ,2 ]
An, Jin [1 ,2 ]
Gong, Chang-De [1 ,2 ,3 ,4 ]
机构：
[1] Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China
[2] Nanjing Univ, Dept Phys, Nanjing 210093, Peoples R China
[3] Zhejiang Normal Univ, Ctr Stat & Theoret Condensed Matter Phys, Jinhua 321004, Peoples R China
[4] Zhejiang Normal Univ, Dept Phys, Jinhua 321004, Peoples R China
来源：
PHYSICAL REVIEW B | 2011年 / 84卷 / 03期
关键词：
ROOM-TEMPERATURE;
D O I：
10.1103/PhysRevB.84.035410
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Electron fully spin-polarized edge states in graphene emerged at the interfaces of a nonuniform magnetic field are studied numerically in a tight-binding model, with both the orbital and Zeeman-splitting effects of magnetic field considered. We show that the fully spin-polarized currents can be manipulated by a gate voltage. In order to make use of the fully spin-polarized currents in the spin-related transport, a three-terminal experiment is designed and expected to export the fully spin-polarized currents. This may have important applications in spin-based nanodevices.
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页数：7
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