Electromagnetic field emitted by core-shell semiconductor nanowires driven by an alternating current
arXiv:1912.10284 · doi:10.1063/5.0055260
Abstract
We consider tubular nanowires with a polygonal cross-section. In this geometry the lowest energy states are separated in two sets, one of corner and one of side-localized states, respectively. The presence of an external magnetic field transverse to the nanowire imposes an additional localization mechanism, the electrons being pushed sideways relatively to the direction of the field. This effect has important implications on the current density, as it creates current loops induced by the Lorentz force. We calculate numerically the electromagnetic field radiated by hexagonal, square, and triangular nanowires. We demonstrate that, because of the aforementioned localization properties, the radiated field can have a complex distribution determined by the internal geometry of the nanowire. We suggest that measuring the field in the neighborhood of the nanowire could be the basic idea of a tomography of the electron distribution inside it, if a smaller receiver antenna could be placed in that zone.
arXiv comment12 pages 8 figures
References in corpus (28)
- Signatures of Majorana fermions in hybrid superconductor-semiconductor nanowire devices
- Evidence of Majorana fermions in an Al - InAs nanowire topological superconductor
- Optical detection of single non-absorbing molecules using the surface plasmon of a gold nanorod
- Up to 40 % reduction of the GaAs band gap energy via strain engineering in core/shell nanowires
- Nanoscale Effects on Heterojunction Electron Gases in GaN/AlGaN Core/Shell Nanowires
- Magnetic states in prismatic core multishell nanowires
- Cylindrical Two-Dimensional Electron Gas in a Transverse Magnetic Field
- Unintentional high density p-type modulation doping of a GaAs/AlAs core-multi-shell nanowire
- Electron and hole gas in modulation doped GaAs/AlGaAs radial heterojunctions
- Magnetoconductance oscillations in quasiballistic multimode nanowires
- Probing quantum confinement within single core-multishell nanowires
- Electron localization and optical absorption of polygonal quantum rings
- Electronic charge and spin density distribution in a quantum ring with spin-orbit and Coulomb interactions
- Landau levels, edge states and magneto-conductance in GaAs/AlGaAs core-shell nanowires
- Reversal of thermoelectric current in tubular nanowires
- Majorana states in prismatic core-shell nanowires
- PAMELA: An Open-Source Software Package for Calculating Nonlocal Exact Exchange Effects on Electron Gases in Core-Shell Nanowires
- On the Dependence of Charge Density on Surface Curvature of an Isolated Conductor
- Robust topological phase in proximitized core-shell nanowires coupled to multiple superconductors
- Snaking states on a cylindrical surface in a perpendicular magnetic field
- Multi-domain electromagnetic absorption of triangular quantum rings
- Spin and impurity effects on flux-periodic oscillations in core-shell nanowires
- Conductance features of core-shell nanowires determined by the internal geometry
- Coulomb Blockade from the Shell of an InP-InAs Core-Shell Nanowire with a Triangular Cross Section
- Ballistic Anisotropic Magnetoresistance in Core Shell Nanowires and Rolled-up Nanotubes
- In-gap corner states in core-shell polygonal quantum rings
- Corner and side localization of electrons in irregular hexagonal semiconductor shells
- Majorana Zero Modes in Nanowires with Combined Triangular and Hexagonal Geometry