Light-induced anomalous Hall effect in graphene

Abstract

Many striking non-equilibrium phenomena have been discovered or predicted in optically-driven quantum solids, ranging from light-induced superconductivity to Floquet-engineered topological phases. These effects are expected to lead to dramatic changes in electrical transport, but can only be comprehensively characterized or functionalized with a direct interface to electrical devices that operate at ultrafast speeds. Here, we make use of laser-triggered photoconductive switches to measure the ultrafast transport properties of monolayer graphene, driven by a mid-infrared femtosecond pulse of circularly polarized light. The goal of this experiment is to probe the transport signatures of a predicted light-induced topological band structure in graphene, similar to the one originally proposed by Haldane. We report the observation of an anomalous Hall effect in the absence of an applied magnetic field. We also extract quantitative properties of the non-equilibrium state. The dependence of the effect on a gate potential used to tune the Fermi level reveals multiple features that reflect the effective band structure expected from Floquet theory. This includes a ~60 meV wide conductance plateau centered at the Dirac point, where a gap of approximately equal magnitude is expected to open. We also find that when the Fermi level lies within this plateau, the estimated anomalous Hall conductance saturates around ~1.8$\pm$0.4 e${}^2$/h.

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• A theoretical approach for electron dynamics and ultrafast spectroscopy
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• Witnessing nonequilibrium entanglement dynamics in a strongly correlated fermionic chain
• Laser-controlled real- and reciprocal-space topology in multiferroic insulators
• Photo-Induced Anomalous Hall Effect in Two-Dimensional Transition-Metal Dichalcogenides
• Establishing non-thermal regimes in pump-probe electron-relaxation dynamics
• Doping and gap-size dependence of high-harmonic generation in graphene : Importance of consistent formulation of light-matter coupling
• Floquet engineering of excitons in semiconductor quantum dots
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• Coherent Dynamics of Floquet-Bloch States in Monolayer WS2 Reveals Fast Adiabatic Switching
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• Floquet states and optical conductivity of an irradiated two dimensional topological insulator
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• Manipulating the symmetry of photon-dressed electronic states
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• Robustness of quantized transport through edge states of finite length: Imaging current density in Floquet topological vs. quantum spin and anomalous Hall insulators
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• Electron correlation effects in superconducting nanowires in and out of equilibrium
• Photoinduced Anomalous Supercurrent Hall Effect
• Inducing and controlling superconductivity in Hubbard honeycomb model using an electromagnetic drive
• Large-scale simulations of Floquet physics on near-term quantum computers
• A dark state of Chern bands: Designing flat bands with higher Chern number
• Floquet optical selection rules in black phosphorus
• Chiral cavity induced spin selectivity
• Time evolution of Majorana corner modes in Floquet second-order topological superconductor
• Nonlinear electric conductivity and THz-induced charge transport in graphene
• Predicted Photo-Induced Topological Phases in Organic Salt $\alpha$-(BEDT-TTF)${}_2$I${}_3$
• Electronic Floquet Liquid Crystals
• Generating many Majorana corner modes and multiple phase transitions in Floquet second-order topological superconductors
• Fate of Topological Edge States in Disordered Periodically-driven Nonlinear Systems
• Fingerprint of the Interbond Electron Hopping in Second-Order Harmonic Generation
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• Optically induced Kondo effect in semiconductor quantum wells
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• Direct and ultrafast probing of quantum many-body interaction and Mott-insulator transition through coherent two-dimensional spectroscopy
• Real-time simulation of light-driven spin chains on quantum computers
• Ultrafast Control of Crystal Structure in a Topological Charge-Density-Wave Material
• Unsupervised identification of Floquet topological phase boundaries
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• Chiral Floquet Engineering on Topological Fermions in Chiral Crystals
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• Suppression of Heating by Multi-color Driving Protocols in Floquet Engineered Strongly Correlated Systems
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• Topological zero modes and correlation pumping in an engineered Kondo lattice
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• Programmable generation of counterrotating bicircular light pulses in the multi-terahertz frequency range
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• Light-induced ultrafast glide-mirror symmetry breaking in black phosphorus
• Symmetry-protected electronic metastability in an optically driven cuprate ladder
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• Floquet Engineering of Multifold Fermions
• Dynamic renormalization group theory for open Floquet systems
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• Floquet vortex states induced by light carrying the orbital angular momentum
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• Predicted photoinduced pair annihilation of emergent magnetic charges in the organic salt $\alpha$-(BEDT-TTF)${}_2$I${}_3$ irradiated by linearly polarized light
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• Optical Control of Slow Topological Electrons in Moiré Systems
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• Effect of the external fields in high Chern number quantum anomalous Hall insulators
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• Light-induced Floquet spin-triplet Cooper pairs in unconventional magnets
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• Chiral transport of hot carriers in graphene in the quantum Hall regime
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• Photonic Shankar skyrmion
• Floquet Graphene Antidot Lattices
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• Optically induced resonant tunneling of electrons in nanostructures
• Quantum control of Hubbard excitons
• Floquet-Volkov interference in a semiconductor
• Engineering rich two-dimensional higher-order topological phases by flux and periodic driving
• Floquet engineering of the Lifshitz phase transition in the Hubbard model
• Relaxation dynamics of the optically driven nonequilibrium states in the electron- and hole-doped topological-insulator materials $(B{i}_{1-x}S{b}_x{)}_{2}T{e}_3$
• Light-induced large and tunable valley-selective Hall effect in a centrosymmetric system
• Prethermalization and wave condensation in a nonlinear disordered Floquet system
• Multiple plateaus of high-sideband generation from Floquet matters
• Light driven magnetic transitions in transition metal dichalcogenide heterobilayers
• Symmetry-protected difference between spin Hall and anomalous Hall effects of a periodically driven multiorbital metal
• Light-matter correlations in Quantum Floquet engineering of cavity quantum materials
• Chiral Luttinger liquids in graphene tuned by irradiation
• Non-diagonal disorder enhanced topological properties of graphene with laser irradiation
• Floquet engineering multi-channel Kondo physics
• Monolithic optoelectronic circuit design for on-chip terahertz applications
• Dynamical phase transitions in the photodriven charge-ordered Dirac-electron system
• Control of Yu-Shiba-Rusinov States through a Bosonic Mode
• Floquet Fractional Chern Insulators and Competing Phases in Twisted Bilayer Graphene
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• Holographic Floquet states in low dimensions (I)
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• Optical Conductivity Signatures of Floquet Electronic Phases
• Cavity Spectroscopy for Strongly Correlated Systems
• Measurement Induced Chirality II: Diffusion and Disorder
• Light-Induced Mirror Symmetry Breaking and Charge Transport
• Flat bands in condensed-matter systems -- perspective for magnetism and superconductivity
• Photoinduced $\eta$-pairing correlation in the Hubbard ladder
• Disorder induced topological phase transition in a driven Majorana chain
• Transport through vertical graphene contacts under intense laser fields
• Predicted novel type of photoinduced topological phase transition accompanied by collision and collapse of Dirac-cone pair in organic salt $\alpha$-(BEDT-TTF)${}_2$I${}_3$
• Transport properties of vertical heterostructures under light irradiation
• Floquet theory and applications in open quantum and classical systems
• Faraday and Kerr rotation due to photoinduced orbital magnetization in two-dimensional electron gas
• Five-dimensional Floquet topological semimetals with emergent Yang monopoles and linked Weyl surfaces
• The Future of the Correlated Electron Problem
• Floquet Engineering of a Diatomic Molecule Through a Bichromatic Radiation Field
• Floquet engineering of edge states in the presence of staggered potential and interactions
• Dissipative preparation of a Floquet topological insulator in an optical lattice via bath engineering
• Chiral TeraHertz surface plasmonics
• Interacting electrons in a flat-band system within the Generalized Kadanoff-Baym Ansatz
• Topological phase transitions via attosecond x-ray absorption spectroscopy
• Quantized topological phases beyond square lattices in Floquet synthetic dimensions
• Floquet topological phases with time-reversal and space inversion symmetries and dynamical detection of topological charges
• Interlayer Dzyaloshinskii-Moriya interactions induced via non-linear phononics in bilayer van der Waals materials
• Time-domain interferometry of electron weak localization through terahertz nonlinear response
• Floquet control of interactions and edge states in a programmable quantum simulator
• Influence of Dynamical Floquet Spectrum on the Plasmon Excitations and Exchange Energy of tilted monolayer 1T${}^{\prime }$MoS${}_2$
• Controlling topology through targeted composite symmetry manipulation in magnetic systems
• Optical conductivity of a topological system driven using a realistic pulse
• Non-Hermitian chiral anomalies in interacting systems
• Ultra-critical Floquet Non-Fermi Liquid
• Topological semimetal with coexisting nodal points and nodal lines
• Monolayer transition metal dichalcogenides under finite-pulse polarized radiation
• Schottky anomaly in a cavity-coupled double quantum well
• A New Era of Quantum Materials Mastery and Quantum Simulators In and Out of Equilibrium
• Quantum transport phenomena induced by time-dependent fields
• One-dimensional extended Hubbard model coupled with an optical cavity
• Orbital Inverse Faraday and Cotton-Mouton Effects in Hall Fluids
• Direct driving of electronic and phononic degrees of freedom in a honeycomb bilayer with infrared light
• Quantum geometry and geometric entanglement entropy of one-dimensional Floquet topological matter
• Floquet boundary states in AB-stacked graphite
• First-principles calculations for transient absorption of laser-excited magnetic materials
• Resonant laser excitation and time-domain imaging of chiral topological polariton edge states
• All-optical control of excitons in semiconductor quantum wells
• Thermoelectric energy conversion in molecular junctions out of equilibrium
• Tunable Octdong and Spindle-Torus Fermi Surfaces in Kramers Nodal Line Metals
• Optically Controlled Topological Phases in the Deformed $\alpha -T_3$ Lattice
• Photo-induced Multiply Quantized Vortex States in Dirac-like Materials
• Stability of Floquet sidebands and quantum coherence in 1D strongly interacting spinless fermions
• Valley Gapless Semiconductor: Models and Applications
• Engineering Floquet moiré patterns for scalable photocurrents
• Nonthermal order by disorder
• Controlling magnetic correlations in a driven Hubbard system far from half-filling
• Bulk photogalvanic current control and gap spectroscopy in 2D hexagonal materials
• Light-induced inverse spin Hall effect and field-induced circular photogalvanic effect in GaAs revealed by two-dimensional terahertz Fourier analysis
• Evidence for bootstrap percolation dynamics in a photo-induced phase transition
• Breakdown of boundary criticality and exotic topological semimetals in $\mathcal{P}\mathcal{T}$-invariant systems
• First-order effect of electron-electron interactions on the anomalous Hall conductivity of massive Dirac fermions
• Nonequilibrium control of kagome metals
• Quantum Hall and Light Responses in a 2D Topological Semimetal
• Photocurrent and photoconductance of an helical edge state
• Direct measurement of broken time-reversal symmetry in centrosymmetric and non-centrosymmetric atomically thin crystals with nonlinear Kerr rotation
• Optically tunable spin Hall effect in periodically driven monolayer transition metal dichalcogenides
• All-optical band structure reconstruction and onset of Landau quantization of Dirac fermions
• Electronic states bound by repulsive potentials in graphene irradiated by a circularly polarized electromagnetic field
• Quantum phase diagram for two species hardcore bosons in one-dimensional optical lattices with the resonantly driven Rabi frequency
• Optical conductivity and orbital magnetization of Floquet vortex states
• Floquet-Engineering Weyl Points and Linked Fermi Arcs from Straight Nodal Lines
• Photoinduced dc Hall current in few-layer black phosphorus with a gate-tunable Floquet gap
• Multiple Floquet Chern insulator phases in the spin-charge coupled triangular-lattice ferrimagnet: Crucial role of higher-order terms in the high-frequency expansion
• Non-linear photoconductivity of strongly driven graphene
• A thermodynamic probe of the topological phase transition in epitaxial graphene based Floquet topological insulator
• Memory-Critical Dynamical Buildup of Phonon-Dressed Majorana Fermions
• Floquet Schrieffer-Wolff transform based on Sylvester equations
• Macroscopic Schrödinger-cat states of nonequilibrium electrons induced by cat-state optical driving and projective measurements on the light field
• Algebraic Exact Solution for Driven Landau Levels in Two-dimensional Electron Gases
• Multiple tunable real-space degeneracies in graphene irradiated by twisted light
• Probing imbalanced Weyl nodes in two-dimensional anisotropic Weyl semimetal via optical conductivity
• Dissipation and non-thermal states in cryogenic cavities
• Emergent Weyl-like points in periodically modulated systems
• Floquet Gauge Pumps as Sensors for Spectral Degeneracies Protected by Symmetry or Topology
• A light-induced charge order mode in a metastable cuprate ladder
• Laser-induced topological phases in monolayer amorphous carbon
• Frequency dependence of the light-induced Hall effect in dissipative graphene
• Dynamical Approach to Realize Room-Temperature Superconductivity in LaH${}_{10}$
• Photo-induced Non-collinear Interlayer RKKY Coupling in Bulk Rashba Semiconductors
• Low-frequency and Moiré Floquet engineering: a review
• Decoding the drive-bath interplay: A guideline to enhance superconductivity
• Discrete time crystals detected by time-translation twist
• Time-dependent Gutzwiller simulation of Floquet topological superconductivity
• Topological quantum control: Edge currents via Floquet depinning of skyrmions in the $\nu =0$ graphene quantum Hall antiferromagnet
• Localized Floquet states in gated bilayer graphene induced by a focused optical beam with orbital angular momentum
• Onsager Reciprocal Relations for Charge and Spin Transport in Periodically Driven Systems
• Transverse Photoresistivity from Photothermal Current Deflection in Metal Films
• Universal features of non-analytical energy storage in quantum critical quantum batteries
• Occupation Dynamics of Floquet-Volkov States and Spectral Sum Rule
• Floquet second-order topological insulator in strained graphene
• Many-body correlations in Floquet steady-states: Frequency-resolved renormalization group of the driven Anderson impurity
• Dielectric Screening in Electromagnetic Dressing of Semiconductors
• Topology and edge modes surviving criticality in non-Hermitian Floquet systems
• Intervalley Band Crossing and Transition of Fractional Chern Insulators in Floquet Twisted Bilayer MoTe${}_2$
• Current cross-correlation spectroscopy of Majorana bound states
• Geometric Effects on Tunneling in Driven Quantum Systems
• Twisted bilayer graphene as a terahertz plasmonic crystal
• Floquet engineering and non-equilibrium topological maps in twisted trilayer graphene
• Topical review on acousto-optical Floquet engineering of single-photon emitters
• Breakdown of the symmetry constraint in a Floquet topological insulator
• Light induced transitions of valley Chern numbers and flat bands in a non-twisted moire graphene-hexagonal boron nitride superlattice
• Optically induced delocalization of electrons bound by attractive potentials
• Elementary excitations in the hybrid Bose-Fermi system induced by circularly polarized light in a two-dimensional gas of charge carriers with different masses
• Interplay of Kekulé distortions and laser fields in graphene
• Unified theory of the photovoltaic Hall effect by field- and light-induced Berry curvatures
• Floquet topological systems with flat bands: Edge modes, Berry curvature, and Orbital magnetization
• $q$th-root non-Hermitian Floquet topological insulators
• Floquet Engineering of Non-Equilibrium Superradiance
• Floquet topological properties in the Non-Hermitian long-range system with complex hopping amplitudes
• Time- and angle-resolved photoelectron spectroscopy of strong-field light-dressed solids: prevalence of the adiabatic band picture
• Symmetry-protected topological corner modes in a periodically driven interacting spin lattice
• Gate and Carriers tunable Valley Imbalance in Topological Proximitized Rhombohedral Trilayer Graphene
• Nonequilibrium hysteretic phase transitions in periodically light-driven superconductors
• Optical control of electrons in a Floquet topological insulator
• Photoinduced intradomain dynamics and nonthermal switching of metastable states in the one-dimensional extended Peierls-Hubbard model
• Anomalous skew scattering of plasmons in a Dirac electron fluid
• Robustness of the Floquet-assisted superradiant phase and possible laser operation
• Proposal for an electrically controlled terahertz micro-oscillator
• Phase transition from Weyl to self-linked semimetal using bi-circular laser
• Radiative Higgs mode in photoinduced $\eta$ pairs
• Floquet engineering in the presence of optically excited carriers
• Anomalous radiation reaction in a circularly polarized field
• Nonequilibrium Dynamics in a Quantum Spin Chain with Pump-Probe Resonant Inelastic X-ray Scattering