Ratchet effects in two-dimensional systems with a lateral periodic potential
arXiv:1206.0970 · doi:10.1103/PhysRevB.86.115301
Abstract
Radiation-induced ratchet electric currents have been studied theoretically in graphene with a periodic noncentrosymmetric lateral potential. The ratchet current generated under normal incidence is shown to consist of two contributions, one of them being polarization-independent and proportional to the energy relaxation time, and another controlled solely by elastic scattering processes and sensitive to both the linear and circular polarization of radiation. Two realistic mechanisms of electron scattering in graphene are considered. For short-range defects, the ratchet current is helicity-dependent but independent of the direction of linear polarization. For the Coulomb impurity scattering, the ratchet current is forbidden for the radiation linearly polarized in the plane perpendicular to the lateral-potential modulation direction. For comparison, the ratchet currents in a quantum well with a lateral superlattice are calculated at low temperatures with allowance for the dependence of the momentum relaxation time on the electron energy.
8 pages, 4 figures
References in corpus (8)
- Graphene photodetectors for high-speed optical communications
- Strong Plasmonic Enhancement of Photovoltage in Graphene
- Screening induced temperature dependent transport in 2D graphene
- Plasmonic terahertz detection by a double-grating-gate field-effect transistor structure with an asymmetric unit cell
- Rectification of thermal fluctuations in a chaotic cavity heat engine
- Helicity sensitive terahertz radiation detection by field effect transistors
- Photogalvanic current in artificial asymmetric nanostructures
- Optical and photogalvanic properties of graphene supperlattices formed by periodic strain
Cited by in corpus (33)
- High frequency electric field induced nonlinear effects in graphene (review)
- Terahertz ratchet effects in graphene with a lateral superlattice
- Charge and spin dynamics driven by ultrashort extreme broadband pulses: a theory perspective
- Fast and Sensitive Terahertz Detection in a Current-Driven Epitaxial-Graphene Asymmetric Dual-Grating-Gate FET Structure
- Phonon drag thermopower in graphene in equipartition regime
- Ratchet effect in spatially modulated bilayer graphene: Signature of hydrodynamic transport
- Terahertz electric field driven electric currents and ratchet effects in graphene
- Magnetic ratchet effect in bilayer graphene
- Helicity sensitive terahertz radiation detection by dual-grating-gate high electron mobility transistors
- Magnetic quantum ratchet effect in (Cd,Mn)Te- and CdTe-based quantum well structures with a lateral asymmetric superlattice
- Giant ratchet magneto-photocurrent in graphene lateral superlattices
- Cyclotron resonance of the magnetic ratchet effect and second harmonic generation in bilayer graphene
- Beatings of ratchet current magneto-oscillations in GaN-based grating gate structures: manifestation of spin-orbit band splitting
- Circular and linear magnetic quantum ratchet effects in dual-grating-gate CdTe-based nanostructures
- Ratchet effect in graphene with trigonal clusters
- Orbital magnetic ratchet effect
- Substrate-induced reduction of graphene thermal conductivity
- Proposal for Plasmon Spectroscopy of Fluctuations in Low-Dimensional Superconductors
- Acoustomagnetoelectric effect in two-dimensional materials: Geometric resonances and Weiss oscillations
- Cyclotron- and magnetoplasmon resonances in bilayer graphene ratchets
- Nonlinear intensity dependence of ratchet currents induced by terahertz laser radiation in bilayer graphene with asymmetric periodic grating gates
- Terahertz ratchet in graphene 2D metamaterial formed by a patterned gate with an antidot arrayd
- THz ratchet effect in HgTe interdigitated structures
- Plasmonic Helicity-Driven Detector of terahertz radiation
- Drag of electrons in graphene by substrate surface polar phonons
- Terahertz spin ratchet effect in magnetic metamaterials
- Quantum transport in a driven disordered potential: onset of directed current and noise-induced current reversal
- Circular THz ratchets in a 2D-modulated Dirac system
- Optically-induced Umklapp shift currents in striped cuprates
- Terahertz and gigahertz magneto-ratchets in graphene-based 2D metamaterials
- Exact theory of edge diffraction and launching of transverse electric plasmons at two-dimensional junctions
- Ratchet Hall Effect in Fluctuating Superconductors
- Skew scattering and ratchet effect in photonic graphene