Abstract
The effect of a curvature in a graphene with a spin-orbit interaction (SOI) is studied using a realistic π and σ orbital tight-binding (TB) model. The coupling of the atomic SOI and the curvature-induced orbital mixing produces an effective Rashba-type SOI and causes the k-dependent energy splitting in the low-energy electronic structure near the K point. We find that the spin Hall effect (SHE) is enhanced by the curvature effect. An effective π orbital model, which includes the SOI and curvature effects perturbatively, is also discussed.
| Original language | English |
|---|---|
| Pages (from-to) | 729-731 |
| Number of pages | 3 |
| Journal | Physica E: Low-Dimensional Systems and Nanostructures |
| Volume | 42 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - Feb 1 2010 |
Keywords
- Graphene
- Spin Hall effect
- Spin-orbit interaction
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Condensed Matter Physics
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Cite this
Kato, T., Onari, S., & Inoue, J. (2010). Spin Hall effect in a curved graphene with spin-orbit interaction. Physica E: Low-Dimensional Systems and Nanostructures, 42(4), 729-731. https://doi.org/10.1016/j.physe.2009.11.132