Intermediate low spin states in a few-electron quantum dot in the ν≤1 regime

Y. Nishi, P. A. Maksym, D. G. Austing, T. Hatano, L. P. Kouwenhoven, H. Aoki, S. Tarucha

Research output: Contribution to journalArticlepeer-review

33 Citations (Scopus)

Abstract

We study the effects of electron-electron interactions in a circular few-electron vertical quantum dot in such a strong magnetic field that the filling factor ν≤1. We measure excitation spectra and find ground state transitions beyond the maximum density droplet (ν=1) region. We compare the observed spectra with those calculated by exact diagonalization to identify the ground state quantum numbers, and find that intermediate low-spin states occur between adjacent spin-polarized magic number states.

Original languageEnglish
Article number033306
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume74
Issue number3
DOIs
Publication statusPublished - 2006

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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