Strong Enhancement of Rashba spin-orbit coupling with increasing anisotropy in the Fock-Darwin states of a quantum dot

Abstract

We have investigated the electronic properties of elliptical quantum dots in a perpendicular external magnetic field, and in the presence of the Rashba spin-orbit interaction. Our work indicates that the Fock-Darwin spectra display strong signature of Rashba spin-orbit coupling even for a low magnetic field, as the anisotropy of the quantum dot is increased. An explanation of this pronounced effect with respect to the anisotropy is presented. The strong spin-orbit coupling effect manifests itself prominently in the corresponding dipole-allowed optical transitions, and hence is susceptible to direct experimental observation.

5 pages, 4 figures

References in corpus (8)

• Topological insulators and superconductors
• Theory of Spin Hall conductivity in n-doped GaAs
• Rashba and Dresselhaus Spin-Splittings in Semiconductor Quantum Wells Measured by Spin Photocurrents
• Gate-controlled spin-orbit interaction in a parabolic GaAs/AlGaAs quantum well
• Tuning of the spin-orbit interaction in a quantum dot by an in-plane magnetic field
• Enhanced Rashba effect for hole states in a quantum dot
• Optical Anisotropy of Electronic Excitations in Elliptical Quantum Dots
• Spin-Orbit Coupling and Tunneling Current in a Parabolic Quantum Dot

Cited by in corpus (10)

• Spin-orbit coupling and magnetic field dependence of carriers states in a self-assembled quantum dot
• New degeneracies and modification of Landau levels in the presence of a parallel linear electric field
• Superintegrability of the Fock-Darwin system
• Spectral Properties and Local Density of States of Disordered Quantum Hall Systems with Rashba Spin-Orbit Coupling
• Super-intense highly anisotropic optical transitions in anisotropic quantum dots
• Spin transition rates in nanowire superlattices: Rashba spin-orbit coupling effects
• Spin-orbit coupling and spin relaxation of hole states in [001]- and [111]-orientedquantum dots of various geometry
• On the oscillating properties of a two-electron quantum dot in the presence of a magnetic field
• Repulsively interacting fermions in a two-dimensional deformed trap with spin-orbit coupling
• Spin-Orbit Coupling in Deformed Harmonic Traps