6533b7d0fe1ef96bd125a3ae
RESEARCH PRODUCT
Laser Assisted Dirac Electron in a Magnetized Annulus
Emilio Fiordilinosubject
Electromagnetic fieldAngular momentumPhysics and Astronomy (miscellaneous)General Mathematics02 engineering and technologyElectronMassless Dirac electron01 natural sciencesElectromagnetic radiationComputer Science::Digital Libraries0103 physical sciencesComputer Science (miscellaneous)Annulus (firestop)010306 general physicsSpin-½Physicslcsh:Mathematicsanalytic solution of Dirac equationgraphene in external fieldgraphene in external fields021001 nanoscience & nanotechnologyMagnetostaticslcsh:QA1-939Magnetic fieldChemistry (miscellaneous)Quantum electrodynamics0210 nano-technologydescription
We study the behaviour of a charge bound on a graphene annulus under the assumption that the particle can be treated as a massless Dirac electron. The eigenstates and relative energy are found in closed analytical form. Subsequently, we consider a large annulus with radius ρ∈[5000,10,000]a0 in the presence of a static magnetic field orthogonal to its plane and again the eigenstates and eigenenergies of the Dirac electron are found in both analytical and numerical form. The possibility of designing filiform currents by controlling the orbital angular momentum and the magnetic field is shown. The currents can be of interest in optoelectronic devices that are controlled by electromagnetic radiation. Moreover, a small radial force acts upon the annulus with a stretching effect. A linearly polarized electromagnetic field propagating in the orthogonal direction is added
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2021-04-01 | Symmetry |