Alfadhli_2018_J._Phys.%3A_Conf._Ser._961_012012.pdf (5.67 MB)
Dirac-Weyl points’ manipulation using linear polarised laser field in Floquet crystals for various graphene superlattices
journal contribution
posted on 2018-02-09, 13:58 authored by Shahad Alfadhli, Sergey SavelievSergey Saveliev, Feodor KusmartsevWe investigate the changes in the energy spectrum of the graphene monolayer subjected to linear polarised laser beam and external periodically modulated static field (electric and magnetic). Floquet theory and the resonance approximation are used to analyse the energy spectrum and, in particular, the creation and the destruction of the Dirac-Weyl points. We found that at certain conditions the graphene is transformed into the two-dimensional Weyl metals, where each of the two original graphene Dirac cones is split into pairs of the Weyl cones. We also show that altering the laser's beam incidence(tilting) angle may lead to appearing and disappearing of the pairs of Weyl points, the opening gap in the spectrum, and its efficient manipulation.
History
School
- Science
Department
- Physics
Published in
Journal of Physics : Conference SeriesVolume
961Issue
1Citation
ALFADHLI, S.A., SAVEL'EV, S. and KUSMARTSEV, F.V., 2018. Dirac-Weyl points’ manipulation using linear polarised laser field in Floquet crystals for various graphene superlattices. Journal of Physics: Conference Series, 961 (1), 012012.Publisher
IOP PublishingVersion
- VoR (Version of Record)
Publisher statement
This work is made available according to the conditions of the Creative Commons Attribution 3.0 Unported (CC BY 3.0) licence. Full details of this licence are available at: http://creativecommons.org/licenses/by/3.0/Acceptance date
2017-12-20Publication date
2018Notes
This is an Open Access Article. It is published by IOP Publishing under the Creative Commons Attribution 3.0 Unported Licence (CC BY). Full details of this licence are available at: http://creativecommons.org/licenses/by/3.0/ISSN
1742-6588eISSN
1742-6596Publisher version
Language
- en