One-way transport in laser-illuminated bilayer graphene: A Floquet isolator

Abstract

We explore the Floquet band-structure and electronic transport in laser-illuminated bilayer graphene. By using a bias voltage perpendicular to the graphene bilayer we show how to get one-way charge and valley transport among two unbiased leads. In contrast to quantum pumping, our proposal uses a different mechanism based on generating a non-reciprocal bandstructure with a built-in directionality. The Floquet states at one edge of a graphene layer become hybridized with the continuum on the other layer, and so the resulting bandstructure allows for one-way transport as in an \textit{isolator}. Our proof-of-concept may serve as a building block for devices exploiting one-way states.

6 pages, 3 figures

References in corpus (16)

• Electric Field Effect in Atomically Thin Carbon Films
• The electronic properties of graphene
• Photovoltaic Hall effect in graphene
• Irradiated graphene as a tunable Floquet topological insulator
• Tuning laser-induced bandgaps in graphene
• Multiterminal Conductance of a Floquet Topological Insulator
• Effective Theory of Floquet Topological Transitions
• Dissipative Floquet Topological Systems
• Radiation effects on the electronic structure of bilayer graphene
• Generation of valley polarized current in bilayer graphene
• Quantum Interference in Graphene Nanoconstrictions
• Microwave-driven ferromagnet--topological-insulator heterostructures: The prospect for giant spin battery effect and quantized charge pump devices
• Non-perturbative laser effects on the electrical properties of graphene nanoribbons
• Quadratic band touching points and flat bands in two-dimensional topological Floquet systems
• Laser-induced effects on the electronic features of graphene nanoribbons
• Optically induced Lifshitz transition in bilayer graphene

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• Dissipation Enhanced Unidirectional Transport in Topological Systems
• Impurity Screening and Friedel Oscillations in Floquet-driven Two-dimensional Metals
• Loss-induced universal one-way transport in periodically driven systems
• Valley filters, accumulators, and switches induced in graphene quantum dots by lines of adsorbed hydrogen atoms
• Tuned gap in graphene through laser barrier
• Transport properties of vertical heterostructures under light irradiation
• Real-Time Out-of-Equilibrium Quantum Dynamics in Disordered Materials
• Low-frequency and Moiré Floquet engineering: a review