Creating stable Floquet-Weyl semimetals by laser-driving of 3D Dirac materials

Abstract

Tuning and stabilising topological states, such as Weyl semimetals, Dirac semimetals, or topological insulators, is emerging as one of the major topics in materials science. Periodic driving of many-body systems offers a platform to design Floquet states of matter with tunable electronic properties on ultrafast time scales. Here we show by first principles calculations how femtosecond laser pulses with circularly polarised light can be used to switch between Weyl semimetal, Dirac semimetal, and topological insulator states in a prototypical 3D Dirac material, Na${}_3$Bi. Our findings are general and apply to any 3D Dirac semimetal. We discuss the concept of time-dependent bands and steering of Floquet-Weyl points (Floquet-WPs), and demonstrate how light can enhance topological protection against lattice perturbations. Our work has potential practical implications for the ultrafast switching of materials properties, like optical band gaps or anomalous magnetoresistance. Moreover, we introduce Floquet time-dependent density functional theory (Floquet-TDDFT) as a general and robust first principles method for predictive Floquet engineering of topological states of matter.

21 pages, 4 figures

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• Photovoltaic Hall effect in graphene
• Topological response in Weyl semimetals and the chiral anomaly
• Theoretical description of time-resolved photoemission spectroscopy: application to pump-probe experiments
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Cited by in corpus (191)

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• Observation of anomalous π modes in photonic Floquet engineering
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• A Large Effective Phonon Magnetic Moment in a Dirac Semimetal
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• Temperature-tunable Fano resonance induced by strong coupling between Weyl fermions and phonons in TaAs
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• Topological Floquet Engineering of Twisted Bilayer Graphene
• Velocity-gauge real-time TDDFT within a numerical atomic orbital basis set
• Monitoring in real time the photon-dressing and undressing of quasiparticles from first principles time-resolved photoelectron spectroscopy
• Observation of Floquet states in graphene
• Bicircular light tuning of magnetic symmetry and topology in Dirac semimetal Cd${}_3$As${}_2$
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• Probing light-driven quantum materials with ultrafast resonant inelastic X-ray scattering
• How Circular Dichroism in time- and angle-resolved photoemission can be used to spectroscopically detect transient topological states in graphene
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• Floquet higher order topological insulator in a periodically driven bipartite lattice
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• Emergent Weyl nodes and Fermi arcs in a Floquet Weyl semimetal
• Floquet prethermalization in periodically driven classical spin systems
• Floquet engineering of black phosphorus upon below-gap pumping
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• Theoretical Understanding of Photon Spectroscopies in Correlated Materials In and Out of Equilibrium
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• Floquet chiral magnetic effect
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• Weyl nodes with higher-order topology in an optically driven nodal-line semimetal
• Gauge invariance of light-matter interactions in first-principle tight-binding models
• Three-dimensional Chiral Lattice Fermion in Floquet Systems
• The magnetic, electronic, and light-induced topological properties in two-dimensional hexagonal FeX2 (X = Cl, Br, I) monolayers
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• Thermo-electric transport properties of Floquet multi-Weyl Semimetals
• Photoinduced Dirac semimetal in ZrTe5
• Generating quantum multi-criticality in topological insulators by periodic driving
• Laser-irradiated Kondo insulators : Controlling Kondo effect and topological phases
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• Photoinduced Topological Phase Transitions in Topological Magnon Insulators
• Polarization-Modulated Angle-Resolved Photoemission Spectroscopy: Towards Circular Dichroism without Circular Photons and Bloch Wavefunction Reconstruction
• Floquet Valley-Polarized Quantum Anomalous Hall State in Nonmagnetic Heterobilayers
• Transient Floquet engineering of superconductivity
• A Shortcut to Self-Consistent Light-Matter Interaction and Realistic Spectra from First-Principles
• Detecting multiple chirality centers in chiral molecules with high harmonic generation
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• Light-induced d-wave superconductivity through Floquet-engineered Fermi surfaces in cuprates
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• Symmetry Analysis of Anomalous Floquet Topological Phases
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• Theory of x-ray scattering from laser-driven electronic systems
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• Light-induced Odd-parity Magnetism in Conventional Collinear Antiferromagnets
• Probing magnetic orbitals and Berry curvature with circular dichroism in resonant inelastic X-ray scattering
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• Floquet Engineering of Multifold Fermions
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• Interplay of Floquet Lifshitz transitions and topological transitions in bilayer Dirac materials
• Floquet-driven indirect exchange interaction mediated by topological insulator surface states
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• Tunneling in an anisotropic cubic Dirac semi-metal
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