Alfadhli2019_Article_ManipulatingTheAnisotropyOfThe.pdf (815.52 kB)
Manipulating the anisotropy of the Dirac-Cone in graphene by laser fields
journal contribution
posted on 2019-04-26, 10:11 authored by Shahd A.A. Alfadhli, Feodor Kusmartsev, Sergey SavelievSergey SavelievOne of the most striking properties of graphene is the relativistic-like Dirac-Cone spectrum of charge carriers. By applying high-frequency laser fields, the system can be described with the use of similar spectrum which is based on a concept of electron quasi-energy. There in this spectrum a creation and annihilation of new Dirac points and cones as well as opening a gap may arise. This allows controlling electron motion without applying DC periodic fields which are effectively described by graphene superlattices. Here we demonstrate that coherent electromagnetic fields applied to graphene can generate new Dirac and Weyl points, induce Lifshitz quantum phase transition for slightly doped graphene and produce an anisotropy of the Dirac cones, which can be even infinite.
Funding
The work of F.V.K. was supported by the Government of the Russian Federation through the ITMO Professorship Program and Royal Society Grant: Growth of GeSiSn/Si Multilayers, Quantum Dots and Topological Insulators.
History
School
- Science
Department
- Physics
Published in
The European Physical Journal BVolume
92Issue
4Citation
ALFADHLI, S.A.A., KUSMARTSEV, F.V. and SAVEL'EV, S., 2019. Manipulating the anisotropy of the Dirac-Cone in graphene by laser fields. The European Physical Journal B, 92, article 83.Publisher
Springer (© The Authors)Version
- VoR (Version of Record)
Publisher statement
This work is made available according to the conditions of the Creative Commons Attribution 4.0 International (CC BY 4.0) licence. Full details of this licence are available at: http://creativecommons.org/licenses/ by/4.0/Acceptance date
2019-02-10Publication date
2019-04-15Copyright date
2019Notes
This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.ISSN
1434-6028eISSN
1434-6036Publisher version
Language
- en