Spin transport in graphene spin-orbit barrier structure
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
Author(s)
Related Research Unit(s)
Detail(s)
Original language | English |
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Pages (from-to) | 632-636 |
Journal / Publication | Physics Letters, Section A: General, Atomic and Solid State Physics |
Volume | 377 |
Issue number | 8 |
Publication status | Published - 1 Mar 2013 |
Link(s)
Abstract
We studied spin-dependent transport in monolayer graphene with a spin-orbit barrier, a narrow strip in which the spin-orbit interaction is not zero. When the Fermi energy is between the two spin-split bands, the structure can be used to generate spin-polarized current. For a strong enough Rashba strength, a thick enough barrier or a low enough Fermi energy, highly spin-polarized current is generated (polarization ∼0.7-0.85). Under these conditions, the spin direction of the transmitted electron is approximately perpendicular to the direction of motion. This shows that graphene spin-orbit nanostructures are useful for the development of graphene spintronic devices. © 2013 Elsevier B.V. All rights reserved.
Research Area(s)
- Graphene, Quantum transport, Spin polarization, Spin-orbit interaction, Spintronic
Citation Format(s)
Spin transport in graphene spin-orbit barrier structure. / Zhang, Qingtian; Chan, K. S.; Lin, Zijing et al.
In: Physics Letters, Section A: General, Atomic and Solid State Physics, Vol. 377, No. 8, 01.03.2013, p. 632-636.
In: Physics Letters, Section A: General, Atomic and Solid State Physics, Vol. 377, No. 8, 01.03.2013, p. 632-636.
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review