Current Density Functional approach to large quantum dots in intense magnetic fields

Abstract

Within Current Density Functional Theory, we have studied a quantum dot made of 210 electrons confined in a disk geometry. The ground state of this large dot exhibits some features as a function of the magnetic field (B) that can be attributed in a clear way to the formation of compressible and incompressible states of the system. The orbital and spin angular momenta, the total energy, ionization and electron chemical potentials of the ground state, as well as the frequencies of far-infrared edge modes are calculated as a function of B, and compared with available experimental and theoretical results.

Typeset using Revtex, 17 pages and 13 Postscript figures

References in corpus (3)

• Density functional theory of the phase diagram of maximum density droplets in two-dimensional quantum dots in a magnetic field
• Spin Ensemble Density Functional Theory for Inhomogeneous Quantum Hall Systems
• Far-infrared edge modes in quantum dots

Cited by in corpus (8)

• Far-infrared spectroscopy of nanoscopic InAs rings
• A vertical diatomic artificial molecule in the intermediate coupling regime in a parallel and perpendicular magnetic field
• A semiclassical approach to the ground state and density oscillations of quantum dots
• Far infrared absorption in triangular and square quantum dots: characterization of corner and side modes
• Electron-hole bilayer quantum dots: Phase diagram and exciton localization
• Brueckner-Hartree-Fock study of circular quantum dots
• Orbital-polarization terms: from a phenomenological to a first-principles description of orbital magnetism in density-functional theory
• Far-infrared excitations in a quantum antidot at finite magnetic fields