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arXiv · 1101.2972

Manipulating the fully spin-polarized edge currents in graphene ribbon

Lei Xu·Jin An·Chang-De Gong
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Abstract

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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Lei Xu, Jin An, Chang-De Gong. 2011-01-15. Manipulating the fully spin-polarized edge currents in graphene ribbon. https://doi.org/10.1103/physrevb.84.035410

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