Bilayer graphene in strong ultrafast laser fields
arXiv:2004.09732 · doi:10.1088/1361-648X/ac0b1e
Abstract
We theoretically investigate the interaction of an ultrastrong femtosecond-long linearly polarized optical pulse with AB-stacked bilayer graphene. The pulse excite electrons from the valence into the conduction band, resulting in finite conduction band population. Such a redistribution of electrons results in the generation of current which can be manipulated by the angle of incidence of the pulse. For the normal incidence, the current along a direction transverse to the polarization of the optical pulse is zero. However, the interlayer symmetry is broken up by a finite angle of incidence which causes induction of electric current in the direction perpendicular to the - plane of polarization of the pulse. We show that the magnitude and the direction of such a current as well as charge transfer along this direction can be manipulated by tuning the angle of incidence of the laser pulse. Further, the symmetry of the system prohibits the generation of transverse current if the pulse is polarized along -direction.
References in corpus (25)
- The electronic properties of graphene
- Two-Dimensional Gas of Massless Dirac Fermions in Graphene
- Experimental Observation of Quantum Hall Effect and Berry's Phase in Graphene
- Quantum Spin Hall Effect in Graphene
- Berry Phase Effects on Electronic Properties
- Moire bands in twisted double-layer graphene
- Landau level degeneracy and quantum Hall effect in a graphite bilayer
- Biased bilayer graphene: semiconductor with a gap tunable by electric field effect
- Unconventional quantum Hall effect and Berry's phase of 2pi in bilayer graphene
- Gate-induced insulating state in bilayer graphene devices
- Asymmetry gap in the electronic band structure of bilayer graphene
- Manipulating infrared photons using plasmons in transparent graphene superlattices
- Quantum interference and Klein tunneling in graphene heterojunctions
- Properties of Graphene: A Theoretical Perspective
- The electronic properties of bilayer graphene
- Exceptional ballistic transport in epitaxial graphene nanoribbons
- Electronic properties of graphene-based bilayer systems
- Light-field driven currents in graphene
- Observation of Landau levels of Dirac fermions in graphite
- Single particle relaxation time versus transport scattering time in a 2D graphene layer
- Electron-electron interactions in graphene bilayers
- Coherent electron trajectory control in graphene
- Femtosecond valley polarization and topological resonances in transition metal dichalcogenides
- Topological resonance and single-optical-cycle valley polarization in gapped graphene
- Ultrafast valley polarization in bilayer graphene