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Dirac-Weyl points’ manipulation using linear polarised laser field in Floquet crystals for various graphene superlattices

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posted on 09.02.2018 by Shahad Alfadhli, Sergey Saveliev, Feodor Kusmartsev
We 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.

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School

  • Science

Department

  • Physics

Published in

Journal of Physics : Conference Series

Volume

961

Issue

1

Citation

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 Publishing

Version

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

20/12/2017

Publication date

2018

Notes

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

1742-6588

eISSN

1742-6596

Language

en

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