Localized Floquet states in gated bilayer graphene induced by a focused optical beam with orbital angular momentum
arXiv:2311.12350 · doi:10.1103/PhysRevB.109.155401
Abstract
We theoretically studied the Floquet state of gated bilayer graphene, which is irradiated by normally incident focused Gaussian beam with orbital angular momentum (OAM). According to the Floquet theory, in-plane and out-of-plane electric field of the OAM beam periodically perturbs the intralayer and interlayer hopping, which are equivalent to the presence of effective staggered sublattice potential and next-nearest neighboring interlayer hopping within the light spot region, respectively. The combination of the effective terms and the gated voltage form an effective trapping potential, which hosts localized quantum states with energy level being within the energy gap of the non-irradiated gated bilayer graphene. The energy spectrum can be tuned by the amplitude of the optical beam and additional static magnetic field. By engineering the parameters, valley-polarized two-fold degenerated zero energy Floquet states can be induced.
arXiv comment4 figures
References in corpus (44)
- Landau level degeneracy and quantum Hall effect in a graphite bilayer
- Aberration-free ultra-thin flat lenses and axicons at telecom wavelengths based on plasmonic metasurfaces
- Photovoltaic Hall effect in graphene
- Observation of Floquet-Bloch states on the surface of a topological insulator
- Transport properties of non-equilibrium systems under the application of light: Photo-induced quantum Hall insulators without Landau levels
- Light-induced anomalous Hall effect in graphene
- Periodically-driven quantum systems: Effective Hamiltonians and engineered gauge fields
- Irradiated graphene as a tunable Floquet topological insulator
- An Ultra-high Numerical Aperture Metalens at Visible Wavelengths
- Floquet chiral edge states in graphene
- Photoinduced transition between conventional and topological insulators in two-dimensional electronic systems
- Angle-resolved photoemission spectroscopy and its application to topological materials
- Floquet Fractional Chern Insulator in Doped Graphene
- Tuning laser-induced bandgaps in graphene
- Metal-insulator transition in graphene induced by circularly polarized photons
- Effective Theory of Floquet Topological Transitions
- Floquet topological transitions in a driven one-dimensional topological insulator
- Hierarchy of Floquet gaps and edge states for driven honeycomb lattices
- Photoinduced topological phase transitions in strained black phosphorus
- Floquet-Engineered Valleytronics in Dirac Systems
- All-Optical Materials Design of Chiral Edge Modes in Transition-Metal Dichalcogenides
- Topological Floquet Engineering of Twisted Bilayer Graphene
- Massless Dirac fermions in a laser field as a counterpart of graphene superlattices
- Recipe for creating an arbitrary number of Floquet chiral edge states
- Optically induced flat bands in twisted bilayer graphene
- Non-perturbative laser effects on the electrical properties of graphene nanoribbons
- Photon Inhibited Topological Transport in Quantum Well Heterostructures
- Edge State Transport in Floquet Topological Insulators
- Theoretical Understanding of Photon Spectroscopies in Correlated Materials In and Out of Equilibrium
- Effective Floquet Hamiltonian in the low-frequency regime
- Floquet-Engineered Topological Flat Bands in Irradiated Twisted Bilayer Graphene
- Floquet engineering of twisted double bilayer graphene
- Low-frequency phase diagram of irradiated graphene and periodically driven spin-1/2 chain
- Spin-Valley Polarized Quantum Anomalous Hall Effect and a Valley-Controlled Half Metal in Bilayer Graphene
- Topological edge states on time-periodically strained armchair graphene nanoribbons
- Topological flat bands in time-periodically driven uniaxial strained graphene nanoribbons
- Topological invariants for Floquet-Bloch systems with chiral, time-reversal, or particle-hole symmetry
- Topological Phase Transitions and Quantum Hall Effect in the Graphene Family
- Dirac cones, Floquet side bands and theory of time resolved ARPES
- Anomalous Goos-Hänchen shift in the Floquet scattering of Dirac fermions
- Dynamics and Control of Edge States in Laser-driven Graphene Nanoribbons
- Tuning of Bilayer Graphene Heterostructure by Horizontally Incident Circular Polarized Light
- Optically Induced Topological Phase Transition in two dimensional Square Lattice Antiferromagnet
- Topological Floquet Flat Bands in Irradiated Alternating Twist Multilayer Graphene