Generation of valley polarized current in bilayer graphene

Abstract

We propose a device for the generation of valley polarized electronic current in bilayer graphene. By analyzing the response of this material to intense terahertz frequency light in the presence of a transverse electric field, we demonstrate that dynamical states are induced in the gapped energy region, and if the system parameters are properly tuned, these states exist only in one valley. The valley polarized states can then be used to filter an arbitrary electron current, so generating a valley polarized current.

4 pages, 3 colour figures. Published version. Journal reference is Applied Physics Letters 95, 062107 (2009)

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Cited by in corpus (55)

• Properties of Graphene: A Theoretical Perspective
• Valley-dependent Brewster angles and Goos-Hanchen effect in strained graphene
• Tuning laser-induced bandgaps in graphene
• Valley filter in strain engineered graphene
• Optical response of graphene under intense terahertz fields
• Valleytronics in merging Dirac cones: All-electric-controlled valley filter, valve and universal reversible logic gate
• Radiation effects on the electronic structure of bilayer graphene
• Dirac and Weyl Materials: Fundamental Aspects and Some Spintronics Applications
• Valley separation in graphene by polarized light
• Peculiar electronic states, symmetries and Berry phases in irradiated $\alpha$-$T_3$ materials
• Floquet-Engineered Valleytronics in Dirac Systems
• Dynamical polarizability of graphene irradiated by circularly polarized ac electric fields
• Perfect Valley Filter in Topological Domain Wall
• AC transport in graphene-based Fabry-Perot devices
• Valley polarization induced second harmonic generation in graphene
• Valley-Polarized Quantum Transport Generated by Gauge Fields in Graphene
• Non-perturbative laser effects on the electrical properties of graphene nanoribbons
• One-way transport in laser-illuminated bilayer graphene: A Floquet isolator
• Local versus extended deformed graphene geometries for valley filtering
• Laser-induced effects on the electronic features of graphene nanoribbons
• Floquet-Engineered Topological Flat Bands in Irradiated Twisted Bilayer Graphene
• Optically induced Lifshitz transition in bilayer graphene
• Floquet engineering of twisted double bilayer graphene
• Irradiated bilayer graphene
• Perfect valley filter in strained graphene with single barrier region
• Gap generation and flat band catalysis in dice model with local interaction
• Sensory Organ like Response of Zigzag Edge Graphene Nanoribbons
• Valley-polarization in biased bilayer graphene using circularly polarized light
• Magnetic field induced Valley-Polarized Quantum Anomalous Hall Effects in Ferromagnetic van der Waals Heterostructures
• Valley-selective Floquet Chern Flat Bands in Twisted Multilayer Graphene
• Valley currents and non-local resistances of graphene nanostructures with broken inversion symmetry from the perspective of scattering theory
• Chiral orbital current and anomalous magnetic moment in gapped graphene
• Electron dynamics in strained graphene
• Intraband electron focusing in bilayer graphene
• Valley filter from magneto-tunneling between single and bi-layer graphene
• Photo-induced valley currents in strained graphene
• Adiabatic quantum pumping in graphene with magnetic barriers
• The role of spin-orbit coupling in topologically protected interface states in Dirac materials
• Magnetoelectric effect in bilayer graphene controlled by valley-isospin density
• Third harmonic generation in gapped bilayer graphene
• Gate-tunable valley currents, non-local resistances and valley accumulation in bilayer graphene nanostructures
• Gap opening in the zeroth Landau level in gapped graphene: Pseudo-Zeeman splitting in an angular magnetic field
• Light-induced large and tunable valley-selective Hall effect in a centrosymmetric system
• Ballistic charge transport in chiral-symmetric few-layer graphene
• Valley filters, accumulators, and switches induced in graphene quantum dots by lines of adsorbed hydrogen atoms
• Transport properties of vertical heterostructures under light irradiation
• Second and third harmonics generation by coherent sub-THz radiation at induced Lifshitz transitions in gapped bilayer graphene
• All-electrical valley filtering in graphene systems (I): A path to integrated electro-valleytronics
• Electron-electron interactions in non-equilibrium bilayer graphene
• High-purity valley-polarized currents induced by bichromatic optical fields in two-dimensional materials
• Complete Spin and Valley Polarization by Total External Reflection from Potential Barriers in Bilayer Graphene and Monolayer Transition Metal Dichalcogenides
• Topological fluctuating electron-hole Cooper pairs in graphene-GaAs heterostructures
• All-electrical scheme for valley polarization in graphene
• Crossover of spin Hall to quantum anomalous Hall effect in PbC/MnSe heterostructures
• All-electrical valley filtering in graphene systems (II): Numerical study of electron transport in valley valves