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Manipulating the anisotropy of the Dirac-Cone in graphene by laser fields

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journal contribution
posted on 2019-04-26, 10:11 authored by Shahd A.A. Alfadhli, Feodor Kusmartsev, Sergey SavelievSergey Saveliev
One 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 B

Volume

92

Issue

4

Citation

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

2019-02-10

Publication date

2019-04-15

Copyright date

2019

Notes

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

1434-6028

eISSN

1434-6036

Language

  • en

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