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Title: Magneto-optical conductivity of anisotropic two-dimensional Dirac–Weyl materials

Abstract

In the presence of an external magnetic field, the optical response of two-dimensional materials, whose charge carriers behave as massless Dirac fermions with arbitrary anisotropic Fermi velocity, is investigated. Using Kubo formalism, we obtain the magneto-optical conductivity tensor for these materials, which allows to address the magneto-optical response of anisotropic Dirac fermions from the well known magneto-optical conductivity of isotropic Dirac fermions. As an application, we analyse the combined effects of strain-induced anisotropy and magnetic field on the transmittance, as well as on the Faraday rotation, of linearly polarized light after passing strained graphene. The reported analytical expressions can be a useful tool to predict the absorption and the Faraday angle of strained graphene under magnetic field. Finally, our study is extended to anisotropic two-dimensional materials with Dirac fermions of arbitrary pseudospin. - Highlights: • The magneto-optical response of anisotropic massless Dirac fermions is investigated. • The conductivity tensor is obtained from the Kubo formula. • We study effects of strain and magnetic field on the light absorption of graphene. • The Faraday rotation in strained graphene is analytically determined.

Authors:
;
Publication Date:
OSTI Identifier:
22701527
Resource Type:
Journal Article
Journal Name:
Annals of Physics
Additional Journal Information:
Journal Volume: 384; Other Information: Copyright (c) 2017 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0003-4916
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ANISOTROPY; CHARGE CARRIERS; FARADAY EFFECT; FERMIONS; GRAPHENE; MAGNETIC FIELDS; MATERIALS; STRAINS; TWO-DIMENSIONAL CALCULATIONS; TWO-DIMENSIONAL SYSTEMS

Citation Formats

Oliva-Leyva, M., E-mail: moliva@iim.unam.mx, and Wang, Chumin. Magneto-optical conductivity of anisotropic two-dimensional Dirac–Weyl materials. United States: N. p., 2017. Web. doi:10.1016/J.AOP.2017.06.013.
Oliva-Leyva, M., E-mail: moliva@iim.unam.mx, & Wang, Chumin. Magneto-optical conductivity of anisotropic two-dimensional Dirac–Weyl materials. United States. doi:10.1016/J.AOP.2017.06.013.
Oliva-Leyva, M., E-mail: moliva@iim.unam.mx, and Wang, Chumin. Fri . "Magneto-optical conductivity of anisotropic two-dimensional Dirac–Weyl materials". United States. doi:10.1016/J.AOP.2017.06.013.
@article{osti_22701527,
title = {Magneto-optical conductivity of anisotropic two-dimensional Dirac–Weyl materials},
author = {Oliva-Leyva, M., E-mail: moliva@iim.unam.mx and Wang, Chumin},
abstractNote = {In the presence of an external magnetic field, the optical response of two-dimensional materials, whose charge carriers behave as massless Dirac fermions with arbitrary anisotropic Fermi velocity, is investigated. Using Kubo formalism, we obtain the magneto-optical conductivity tensor for these materials, which allows to address the magneto-optical response of anisotropic Dirac fermions from the well known magneto-optical conductivity of isotropic Dirac fermions. As an application, we analyse the combined effects of strain-induced anisotropy and magnetic field on the transmittance, as well as on the Faraday rotation, of linearly polarized light after passing strained graphene. The reported analytical expressions can be a useful tool to predict the absorption and the Faraday angle of strained graphene under magnetic field. Finally, our study is extended to anisotropic two-dimensional materials with Dirac fermions of arbitrary pseudospin. - Highlights: • The magneto-optical response of anisotropic massless Dirac fermions is investigated. • The conductivity tensor is obtained from the Kubo formula. • We study effects of strain and magnetic field on the light absorption of graphene. • The Faraday rotation in strained graphene is analytically determined.},
doi = {10.1016/J.AOP.2017.06.013},
journal = {Annals of Physics},
issn = {0003-4916},
number = ,
volume = 384,
place = {United States},
year = {2017},
month = {9}
}