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 2010 |
| Externally published | Yes |
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Keywords
- Graphene
- Spin Hall effect
- Spin-orbit interaction
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Atomic and Molecular Physics, and Optics
Cite this
Spin Hall effect in a curved graphene with spin-orbit interaction. / Kato, T.; Onari, S.; Inoue, J.
In: Physica E: Low-Dimensional Systems and Nanostructures, Vol. 42, No. 4, 02.2010, p. 729-731.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Spin Hall effect in a curved graphene with spin-orbit interaction
AU - Kato, T.
AU - Onari, S.
AU - Inoue, J.
PY - 2010/2
Y1 - 2010/2
N2 - 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.
AB - 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.
KW - Graphene
KW - Spin Hall effect
KW - Spin-orbit interaction
UR - http://www.scopus.com/inward/record.url?scp=76949098973&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=76949098973&partnerID=8YFLogxK
U2 - 10.1016/j.physe.2009.11.132
DO - 10.1016/j.physe.2009.11.132
M3 - Article
AN - SCOPUS:76949098973
VL - 42
SP - 729
EP - 731
JO - Physica E: Low-Dimensional Systems and Nanostructures
JF - Physica E: Low-Dimensional Systems and Nanostructures
SN - 1386-9477
IS - 4
ER -