Resonant manifestations of chiral excitons in magnetooptical Faraday and Kerr effects in topological insulator film

Abstract

Manifestation of chiral excitons on surfaces of topological insulator thin film with magnetically induced energy gap in the surface spectrum in magnetooptical Kerr and Faraday effects is analyzes. Excitonic contribution to a surface optical conductivity tensor is calculated. Chiral excitons contrary to conventional ones resonantly contribute to Hall conductivity due to lack of the symmetry between the states with opposite angular momentum. They can lead to considerable enhancement of Faraday angle and ellipticity of transmitted electromagnetic wave. Chiral excitons cause decrease of Kerr angle and prominent signatures in ellipticity of reflected electromagnetic wave. Conditions for experimental observation of described effects are discussed.

7 pages, 8 figures, Published version

References in corpus (13)

• Electric Field Effect in Atomically Thin Carbon Films
• The electronic properties of graphene
• Discovery (theoretical prediction and experimental observation) of a large-gap topological-insulator class with spin-polarized single-Dirac-cone on the surface
• Topological Field Theory of Time-Reversal Invariant Insulators
• Substrate-induced band gap opening in epitaxial graphene
• Unconventional quantum Hall effect and Berry's phase of 2pi in bilayer graphene
• Asymmetry gap in the electronic band structure of bilayer graphene
• Topological Surface States Protected From Backscattering by Chiral Spin Texture
• Ultrafast Optical Excitation of a Persistent Surface-State Population in the Topological Insulator Bi2Se3
• Tunable Excitons in Biased Bilayer Graphene
• Terahertz Kerr and Reflectivity Measurements on the Topological Insulator Bi2Se3
• Excitons and Optical Absorption on the Surface of a Strong Topological Insulator with a Magnetic Energy Gap
• Generalized quantization condition in topological insulator

Cited by in corpus (22)

• Many-Body Theory of Trion Absorption Features in Two-Dimensional Semiconductors
• Radiative Lifetimes of Excitons and Trions in Monolayers of Metal Dichalcogenide MoS2
• Berry phase modification to the energy spectrum of excitons
• Fast Exciton Annihilation by Capture of Electrons or Holes by Defects via Auger Scattering in Monolayer Metal Dichalcogenides
• Chiral excitonic order from twofold van Hove singularities in kagome metals
• Magneto-optical transport properties of monolayer phosphorene
• Exciton-polarons in doped semiconductors in a strong magnetic field
• Charged skyrmions on the surface of a topological insulator
• Magneto-optical transport properties of monolayer WSe2
• Off-resonant polarized light-controlled thermoelectric transport in ultrathin topological insulators
• Transfer matrix approach for the Kerr and Faraday rotation in layered nanostructures
• Optical properties of magnetically doped ultra-thin topological insulator slabs
• Polariton Hall Effect in Transition-Metal Dichalcogenides
• Two-body problem for two-dimensional electrons in Bernervig-Hughes-Zhang model
• Resonant Faraday and Kerr effects due to in-gap states on the surface of a topological insulator
• Fingerprints of Berry phases in the bulk exciton spectrum of a topological insulator
• Chiral filtration of light by Weyl-semimetal medium
• Optical absorption in interacting and nonlinear Weyl semimetals
• Transport of Dirac electrons in a random magnetic field in topological heterostructures
• Hybrid dark excitons in monolayer ${MoS}_2$
• Unconventional quantum Hall effect in Floquet topological insulators
• Gapless chiral excitons in thin films of topological insulators