The selection rule of graphene in a composite magnetic field
arXiv:1404.2422 · doi:10.1364/OE.22.007473
Abstract
The generalized tight-binding model with exact diagonalization method is developed to calculate the optical properties of monolayer graphene in the presence of composite magnetic fields. The ratio of the uniform magnetic field and the modulated one accounts for a strong influence on the structure, number, intensity and frequency of absorption peaks, and thus the extra selection rules that are subsequently induced can be explained. When the modulated field increases, each symmetric peak, under a uniform magnetic field, splits into a pair of asymmetric peaks with lower intensities. The threshold absorption frequency exhibits an obvious evolution in terms of a redshift. These absorption peaks obey the same selection rule that is followed by Landau level transitions. Moreover, at a sufficiently strong modulation strength, the extra peaks in the absorption spectrum might arise from different selection rules.
References in corpus (35)
- Electric Field Effect in Atomically Thin Carbon Films
- Two-Dimensional Gas of Massless Dirac Fermions in Graphene
- Experimental Observation of Quantum Hall Effect and Berry's Phase in Graphene
- Chiral tunneling and the Klein paradox in graphene
- Room-Temperature Quantum Hall Effect in Graphene
- Electronic Properties of Disordered Two-Dimensional Carbon
- Observation of the Fractional Quantum Hall Effect in Graphene
- Infrared spectroscopy of Landau levels in graphene
- Transport of Dirac quasiparticles in graphene: Hall and optical conductivities
- Cyclotron Resonance study of the electron and hole velocity in graphene monolayers
- Electronic properties of graphene multilayers
- Transport in Bilayer Graphene: Calculations within a self-consistent Born approximation
- Extra Dirac points in the energy spectrum for superlattices on single-layer graphene
- Emerging Zero Modes for Graphene in a Periodic Potential
- Dirac and Klein-Gordon particles in one-dimensional periodic potentials
- Coulomb Interactions and Ferromagnetism in Pure and Doped Graphene
- Electronic Band gaps and transport properties inside graphene superlattices with one-dimensional periodic squared potentials
- Excitonic gap, phase transition, and quantum Hall effect in graphene
- Magnetic oscillations in planar systems with the Dirac-like spectrum of quasiparticle excitations II: transport properties
- Smooth electron waveguides in graphene
- High-Energy Limit of Massless Dirac Fermions in Multilayer Graphene using Magneto-Optical Transmission Spectroscopy
- Landau Level Spectrum of ABA- and ABC-stacked Trilayer Graphene
- Excitations from Filled Landau Levels in Graphene
- Coulomb screening and collective excitations in a graphene bilayer
- Magnetic Kronig-Penney model for Dirac electrons in single-layer graphene
- Collective excitations of Dirac electrons in a graphene layer with spin-orbit interaction
- Magneto-optical Selection Rules in Bilayer Bernal Graphene
- Hofstadter butterflies of bilayer graphene
- Semimetalic graphene in a modulated electric potential
- Searching for confined modes in graphene channels: the variable phase method
- Optical transitions between Landau levels: AA-stacked bilayer graphene
- Spin-flip excitations, spin waves, and magneto-excitons in graphene Landau levels at integer filling factors
- Dirac Spectrum in Piecewise Constant One-Dimensional Potentials
- Theory of Weiss oscillations in the magnetoplasmon spectrum of Dirac electrons in graphene
- Polarization of graphene in a strong magnetic field beyond the Dirac cone approximation