Optical Hall response of bilayer graphene: the manifestation of chiral hybridised states in broken mirror symmetry lattices
arXiv:2009.10398 · doi:10.1103/PhysRevResearch.2.043281
Abstract
Understanding the mechanisms governing the optical activity of layered-stacked materials is crucial to the design of devices aimed at manipulating light at the nanoscale. Here, we show that both twisted and slid bilayer graphene are chiral systems that can deflect the polarization of linear polarized light. However, only twisted bilayer graphene supports circular dichroism. Our calculation scheme, which is based on the time-dependent Schrödinger equation, is particularly efficient for calculating the optical-conductivity tensor. Specifically, it allows us to show the chirality of hybridized states as the handedness-dependent bending of the trajectory of kicked Gaussian wave packets in bilayer lattices. We show that nonzero Hall conductivity is the result of the noncanceling manifestation of hybridized states in chiral lattices. We also demonstrate the continuous dependence of the conductivity tensor on the twist angle and the sliding vector.
arXiv comment24 pages, 6 figures
References in corpus (39)
- Magic-angle graphene superlattices: a new platform for unconventional superconductivity
- Correlated Insulator Behaviour at Half-Filling in Magic Angle Graphene Superlattices
- Tuning superconductivity in twisted bilayer graphene
- Energy gaps, topological insulator state and zero-field quantum Hall effect in graphene by strain engineering
- Signatures of moiré-trapped valley excitons in MoSe/WSe heterobilayers
- The Kernel Polynomial Method
- Observation of topological polaritons and photonic magic angles in twisted van der Waals bi-layers
- Giant Faraday rotation in single- and multilayer graphene
- Twistable electronics with dynamically rotatable heterostructures
- Twistronics: Manipulating the Electronic Properties of Two-dimensional Layered Structures through their Twist Angle
- Optical Absorption in Twisted Bilayer Graphene
- Decoupling superconductivity and correlated insulators in twisted bilayer graphene
- Band Structure of Twisted Bilayer Graphene: Emergent Symmetries, Commensurate Approximants and Wannier Obstructions
- Modeling electronic structure and transport properties of graphene with resonant scattering centers
- Non-Abelian gauge potentials in graphene bilayers
- Quantum transport in Rashba spin-orbit materials: A review
- Strain effect on the optical conductivity of graphene
- Magneto-Optical Faraday and Kerr Effects in Topological Insulator Films and in Other Layered Quantized Hall Systems
- The crucial role of atomic corrugation on the flat bands and energy gaps of twisted bilayer graphene at the "magic angle"
- Gauge fields from strain in graphene
- Van Hove Singularities and Excitonic Effects in the Optical Conductivity of Twisted Bilayer Graphene
- Interlayer interaction in general incommensurate atomic layers
- Real-space calculation of the conductivity tensor for disordered topological matter
- Critical delocalization of chiral zero energy modes in graphene
- Berry Curvature Dipole in Strained Graphene: a Fermi Surface Warping Effect
- Chiral response of twisted bilayer graphene
- Electrically tunable gauge fields in tiny-angle twisted bilayer graphene
- Structural relaxation and low energy properties of Twisted Bilayer Graphene
- Electronic topological transition in sliding bilayer graphene
- Twisting Dirac fermions: Circular dichroism in bilayer graphene
- Polar Kerr Effect and Time Reversal Symmetry Breaking in Bilayer Graphene
- Flat bands and chiral optical response of moiré insulators
- Externally controlled band gap in twisted bilayer graphene
- Effective Dirac Hamiltonian for anisotropic honeycomb lattices: optical properties
- Tunable dichroism and optical absorption of graphene by strain engineering
- Magneto-optical and optical probes of gapped ground states of bilayer graphene
- Transfer matrix approach for the Kerr and Faraday rotation in layered nanostructures
- Efficient Linear Scaling Approach for Computing the Kubo Hall Conductivity
- Time-evolution patterns of electrons in twisted bilayer graphene
Cited by in corpus (4)
- Chirality-induced spin texture switching in twisted bilayer graphene
- Terahertz Circular Dichroism in Commensurate Twisted Bilayer Graphene
- Optical activity and transport in twisted bilayer graphene: the essence of spatial dispersion effects
- Layer Hall counterflow as a model probe of magic-angle twisted bilayer graphene