Disentangling the Competing Mechanisms of Light-Induced Anomalous Hall Conductivity in Three-Dimensional Dirac Semimetal

Abstract

We experimentally elucidate the origin of the anomalous Hall conductivity in a three-dimensional Dirac semimetal, Cd${}_3$As${}_2$, driven by circularly polarized light. Using time-resolved terahertz Faraday rotation spectroscopy, we determine the transient Hall conductivity spectrum with special attention to its sign. Our results clearly show the dominance of direct photocurrent generation assisted by the terahertz electric field. The contribution from the Floquet-Weyl nodes is found to be minor when the driving light is in resonance with interband transitions. We develop a generally applicable classification of microscopic mechanisms of light-induced anomalous Hall conductivity.

arXiv comment14 pages, 3 figures, 1 table

References in corpus (38)

• Berry Phase Effects on Electronic Properties
• Coupled spin and valley physics in monolayers of MoS2 and other group-VI dichalcogenides
• Anomalous Hall effect
• The Valley Hall Effect in MoS2 Transistors
• Three Dimensional Dirac Semimetal and Quantum Transports in Cd3As2
• Photovoltaic Hall effect in graphene
• Floquet Engineering of Quantum Materials
• Light-induced anomalous Hall effect in graphene
• Quantized circular photogalvanic effect in Weyl semimetals
• Creating stable Floquet-Weyl semimetals by laser-driving of 3D Dirac materials
• Orbitronics: the Intrinsic Orbital Hall Effect in p-Doped Silicon
• Orbitronics: Orbital Currents in Solids
• Low-frequency divergence and quantum geometry of the bulk photovoltaic effect in topological semimetals
• Out of equilibrium electrons and the Hall conductance of a Floquet topological insulator
• Dissipative Floquet Topological Systems
• Microscopic theory for the light-induced anomalous Hall effect in graphene
• Controlled Population of Floquet-Bloch States via Coupling to Bose and Fermi Baths
• Floquet Weyl Semimetal Induced by Off-Resonant Light
• Efficient Terahertz Harmonic Generation with Coherent Acceleration of Electrons in the Dirac Semimetal Cd3As2
• Room-Temperature Terahertz Anomalous Hall Effect in Weyl Antiferromagnet Mn${}_3$Sn Thin Films
• Chiral pumping effect induced by rotating electric fields
• Bulk photovoltaic effects in the presence of a static electric field
• Bicircular light tuning of magnetic symmetry and topology in Dirac semimetal Cd${}_3$As${}_2$
• Steady states and edge state transport in topological Floquet-Bloch systems
• Gate-tuned quantum Hall states in Dirac semimetal (Cd1-xZnx)3As2
• Emergent Weyl nodes and Fermi arcs in a Floquet Weyl semimetal
• Floquet dynamics in light-driven solids
• Light-induced anomalous Hall effect in massless Dirac fermion systems and topological insulators with dissipation
• Photoninduced Weyl half-metal phase and spin filter effect from topological Dirac semimetals
• Observing light-induced Floquet band gaps in the longitudinal conductivity of graphene
• Optical parametric amplification of phase-stable terahertz-to-midinfrared pulses studied in the time domain
• Optical injection and terahertz detection of the macroscopic Berry curvature
• Quantum Hall effect originated from helical edge states in Cd${}_3$As${}_2$
• Detection of the anomalous velocity with sub-picosecond time resolution in semiconductor nanostructures
• Light Induced Hall effect in semiconductors with spin-orbit coupling
• Electric field induced injection and shift currents in zigzag graphene nanoribbons
• Tracking ultrafast change of multiterahertz broadband response functions in a photoexcited Dirac semimetal Cd${}_3$As${}_2$ thin film
• Stimulated Rayleigh Scattering Enhanced by a Longitudinal Plasma Mode in a Periodically Driven Dirac Semimetal Cd${}_3$As${}_2$

Cited by in corpus (9)

• Observation of Terahertz Spin Hall Conductivity Spectrum in GaAs with Optical Spin Injection
• Light-induced anomalous Hall conductivity in massive 3D Dirac semimetal Co${}_3$Sn${}_2$S${}_2$
• Chiral Floquet Engineering on Topological Fermions in Chiral Crystals
• Programmable generation of counterrotating bicircular light pulses in the multi-terahertz frequency range
• Anomalous Hall transport by optically injected isospin degree of freedom in Dirac semimetal thin film
• Five-dimensional Floquet topological semimetals with emergent Yang monopoles and linked Weyl surfaces
• Floquet theory and applications in open quantum and classical systems
• Light-induced inverse spin Hall effect and field-induced circular photogalvanic effect in GaAs revealed by two-dimensional terahertz Fourier analysis
• Unified theory of the photovoltaic Hall effect by field- and light-induced Berry curvatures