Valley transport driven by dynamic lattice distortion
arXiv:2110.09724 · doi:10.1103/PhysRevB.105.195409
Abstract
Angular momentum conversion between mechanical rotation and the valley degree of freedom in 2D Dirac materials is investigated theoretically. Coupling between the valley and vorticity of dynamic lattice distortions is derived by applying the k.p method to 2D Dirac materials with an inertial effect. Lattice strain effects are also incorporated. Valley transfer and valley-dependent carrier localization are predicted using the dynamic lattice distortions. The transport properties are found to be controllable, allowing the system to be insulating and to generate pulsed charge current. Our formalism offers a route toward mechanical manipulation of valley dynamics in 2D Dirac materials.
arXiv comment10 pages, 5 figures
References in corpus (33)
- Berry Phase Effects on Electronic Properties
- Coupled spin and valley physics in monolayers of MoS2 and other group-VI dichalcogenides
- Control of valley polarization in monolayer MoS2 by optical helicity
- Valley polarization in MoS2 monolayers by optical pumping
- MoS_2 as an ideal material for valleytronics: valley-selective circular dichroism and valley Hall effect
- Substrate-induced band gap opening in epitaxial graphene
- Valley contrasting physics in graphene: magnetic moment and topological transport
- Gravity Probe B: Final Results of a Space Experiment to Test General Relativity
- Gauge fields in graphene
- Magnetic Control of Valley Pseudospin in Monolayer WSe2
- Global hyperon polarization in nuclear collisions: evidence for the most vortical fluid
- Valley Zeeman Effect in Elementary Optical Excitations of a Monolayer WSe2
- Breaking of valley degeneracy by magnetic field in monolayer MoSe2
- Valley Splitting and Polarization by the Zeeman Effect in Monolayer MoSe2
- Electrical control of the valley Hall effect in bilayer MoS2 transistors
- Robust optical emission polarization in MoS2 monolayers through selective valley excitation
- Acoustically driven ferromagnetic resonance
- Symmetry-based approach to electron-phonon interactions in graphene
- The Ultrafast Einstein-De Haas Effect
- Anomalous orbital magnetism in Dirac-electron systems: Role of pseudo-spin paramagnetism
- Theory of strain in single-layer transition metal dichalcogenides
- Nanophotonics with 2D Transition Metal Dichalcogenides
- Origin of the energy bandgap in epitaxial graphene
- Room temperature strain-induced Landau levels in graphene on a wafer-scale platform
- Theory of spin hydrodynamic generation
- Valley Acoustoelectric Effect
- Angular momentum compensation manipulation to room temperature of the ferrimagnet HoDyFeO detected by the Barnett effect
- Observation of gyromagnetic reversal
- Chiral orbital current and anomalous magnetic moment in gapped graphene
- The Einstein - de Haas effect at radio frequencies in and near magnetic equilibrium
- Acoustoelectric effect in two-dimensional Dirac materials exposed to Rayleigh surface acoustic waves
- Electron spin-vorticity coupling in low and high Reynolds number pipe flows
- Electrical voltage by electron spin-vorticity coupling in laminar ducts