Harmonic generation in bent graphene with artificially-enhanced spin-orbit coupling
arXiv:2204.11664 · doi:10.1103/PhysRevA.106.043517
Abstract
We theoretically investigate the nonlinear response of bent graphene, in the presence of artificially-enhanced spin-orbit coupling, which can occur either via adatom deposition, or by placing the sheet of bent graphene in contact with a spin-orbit active substrate. We discuss the interplay between the spin-orbit coupling and the artificial magnetic field generated by the bending, for both the cases of Rashba and intrinsic spin-orbit coupling. For the latter, we introduce a spin-field interaction Hamiltonian addressing directly the electron spin as a degree of freedom. Our findings reveal that in this case, by controlling the amount of spin-orbit coupling, it is possible to significantly tune the spectrum of the nonlinear signal, achieving, in principle, efficient conversion of light from THz to UV region.
References in corpus (29)
- Electric Field Effect in Atomically Thin Carbon Films
- Topological Insulators
- Universal Dynamic Conductivity and Quantized Visible Opacity of Suspended Graphene
- Quantum Spin Hall Effect in Graphene
- Topological Photonics
- Topological Photonics
- Quantum Spin Hall Effect and Topological Field Effect Transistor in Two-Dimensional Transition Metal Dichalcogenides
- Graphene Mode-Locked Ultrafast Laser
- Energy gaps, topological insulator state and zero-field quantum Hall effect in graphene by strain engineering
- Optical modulators with two-dimensional layered materials
- Intrinsic and Rashba Spin-orbit Interactions in Graphene Sheets
- Spin-orbit coupling in curved graphene, fullerenes, nanotubes, and nanotube caps
- Spin-orbit gap of graphene: First-principles calculations
- Gauge fields in graphene
- The Quantum Spin Hall Effect: Theory and Experiment
- Topological Quantum Matter with Ultracold Gases in Optical Lattices
- Band-structure topologies of graphene: spin-orbit coupling effects from first principles
- Impurity induced spin-orbit coupling in graphene
- Rashba effect in the graphene/Ni(111) system
- Observation of Quantum Spin Hall States in InAs/GaSb Bilayers under Broken Time-Reversal Symmetry
- Generating quantizing pseudomagnetic fields by bending graphene ribbons
- Spin-Orbit-Mediated Spin Relaxation in Graphene
- Graphene with Structure-Induced Spin-Orbit Coupling: Spin-Polarized States, Spin Zero Modes, and Quantum Hall Effect
- Theory of strain in single-layer transition metal dichalcogenides
- Wavevector-dependent spin filtering and spin transport through magnetic barriers in graphene
- Nonlinear optics of graphene in a strong magnetic field
- Evidence for a quantum-spin-Hall phase in graphene decorated with Bi2Te3 nanoparticles
- Landau levels, edge states, and strained magnetic waveguides in graphene monolayers with enhanced spin-orbit interaction
- Electronic structure and layer-resolved transmission of bilayer graphene nanoribbon in the presence of vertical fields