Comment on ``Shell Filling and Spin Effects in a Few Electron Quantum Dot'' [PRL 77, 3613 (1996)]

TL;DR

This paper presents calculated addition spectra for electrons in a quantum dot under magnetic field, comparing density functional theory results with experiments, revealing new substructures due to Hund's rule effects.

Contribution

It introduces a theoretical analysis that explains experimental spectra and uncovers new magnetic field-induced substructures caused by Hund's rule.

Findings

Good qualitative agreement with experimental data

Identification of new substructures due to Hund's rule

Demonstration of the importance of magnetic field effects

Abstract

We briefly report on calculated addition spectra for electrons in a circular quantum dot with perpendicular magnetic field. We compare our current density functional theory calculations with recent experiments by Tarucha et al. [PRL 77, 3613 (1996)]. We find a very good qualitative agreement of the structures and find an additional effect caused by Hund's first rule in magnetic field, which gives rise to new substructures not discussed in the paper by Tarucha.