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SPIN-ORBIT COUPLING IN GRAPHENE UNDER UNIAXIAL STRAIN:: TIGHT-BINDING APPROACH AND FIRST-PRINCIPLES CALCULATIONS.
- Source :
-
Modern Physics Letters B . 5/10/2011, Vol. 25 Issue 11, p823-830. 8p. 1 Diagram, 2 Charts, 1 Graph. - Publication Year :
- 2011
-
Abstract
- Tuning the spin-orbit coupling (SOC) in graphene is highly desired for its application in spintronics. In this paper, we calculated the band gap induced by SOC in graphene under uniaxial strain from a tight-binding model, and found that the band gap has a monotonic increasing dependence on the strain in the range of -20% to 15%. Our results suggest that strain can be used as a reversible and controllable way to tune the SOC in graphene. First-principles calculations were performed, confirming the results of tight-binding approximation. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 02179849
- Volume :
- 25
- Issue :
- 11
- Database :
- Academic Search Index
- Journal :
- Modern Physics Letters B
- Publication Type :
- Academic Journal
- Accession number :
- 60159042
- Full Text :
- https://doi.org/10.1142/S0217984911026097