Dynamical polarizability of graphene irradiated by circularly polarized ac electric fields

Abstract

We examine the low-energy physics of graphene in the presence of a circularly polarized electric field in the terahertz regime. Specifically, we derive a general expression for the dynamical polarizability of graphene irradiated by an ac electric field. Several approximations are developed that allow one to develop a semianalytical theory for the weak field regime. The ac field changes qualitatively the single and many electron excitations of graphene: undoped samples may exhibit collective excitations (in contrast to the equilibrium situation), and the properties of the excitations in doped graphene are strongly influenced by the ac field. We also show that the intensity of the external field is the critical control parameter for the stability of these excitations.

14 pages, 9 figures

References in corpus (21)

• Electric Field Effect in Atomically Thin Carbon Films
• The electronic properties of graphene
• Dielectric function, screening, and plasmons in 2D graphene
• Photovoltaic Hall effect in graphene
• Dynamical polarization of graphene at finite doping
• Transport properties of non-equilibrium systems under the application of light: Photo-induced quantum Hall insulators without Landau levels
• Driven quantum transport on the nanoscale
• Graphene Antidot Lattices - Designed Defects and Spin Qubits
• Floquet Spectrum and Transport Through an Irradiated Graphene Ribbon
• Tuning laser-induced bandgaps in graphene
• Dynamical polarization, screening, and plasmons in gapped graphene
• Optical response of graphene under intense terahertz fields
• Effect of radiation on transport in graphene
• Generation of valley polarized current in bilayer graphene
• Collective modes of doped graphene and a standard 2DEG in a strong magnetic field: linear magneto-plasmons versus magneto-excitons
• Charge response function and a novel plasmon mode in graphene
• f-Sum Rule and Unconventional Spectral Weight Transfer in Graphene
• Single-parameter pumping in graphene
• Irradiated bilayer graphene
• Analytical expressions for the polarizability of the honeycomb lattice
• Screening in graphene antidot lattices

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• Unpaired Floquet Majorana fermions without magnetic fields
• Non-perturbative laser effects on the electrical properties of graphene nanoribbons
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• Exact solution for square-wave grating covered with graphene: Surface plasmon-polaritons in the THz range
• Interplay between spin-orbit interactions and a time-dependent electromagnetic field in monolayer graphene
• Laser-induced effects on the electronic features of graphene nanoribbons
• Dynamical Floquet spectrum of Kekulé-distorted graphene under normal incidence of electromagnetic radiation
• Simulation of 1D topological phases in driven quantum dot arrays
• Non-Equilibrium RKKY Interaction in Irradiated Graphene
• Noncollinear twisted RKKY interaction on the optically driven SnTe(001) surface
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• Dynamics of quasiparticles in graphene under intense circularly polarized light
• Anisotropic light-tailored RKKY interaction in two-dimensional $d$-wave altermagnets
• Floquet spectrum and driven conductance in Dirac materials: Effects of Landau-Zener-Stückelberg-Majorana interferometry
• Probing topological phases in a perturbed Kane-Mele model via RKKY interaction: Application to monolayer jacutingaite Pt${}_2$HgSe${}_3$
• Floquet engineering of Dirac cones on the surface of a topological insulator
• Impurity States and Indirect Exchange Interaction in Irradiated Graphene
• Influence of Dynamical Floquet Spectrum on the Plasmon Excitations and Exchange Energy of tilted monolayer 1T${}^{\prime }$MoS${}_2$
• Kinetic theory of spin-polarized systems in electric and magnetic fields with spin-orbit coupling: II. RPA response functions and collective modes
• Photoprotected spin Hall effect on graphene with substrate induced Rashba spin-orbit coupling
• Complex-band-structure eigenvalue method adapted to Floquet systems: topological superconducting wires as a case study
• Dielectric properties of graphene on transition metal dichalcogenide substrate
• Photo-induced Multiply Quantized Vortex States in Dirac-like Materials
• Beating pattern in radiation-induced oscillatory magnetoresistance in 2DES: coupling of plasmon-like and acoustic phonon modes
• Topological Properties of Bilayer $\alpha -T_3$ Lattice Induced by Polarized Light