Addition energy spectrum of a quantum dot disk up to the third shell

D. G. Austing, Y. Tokura, S. Tarucha, P. Matagne, Jean-Pierre Leburton

Research output: Contribution to journalArticle

Abstract

The 0 T addition energy spectrum for a high quality circular semiconductor quantum dot artificial atom is measured directly from the Coulomb diamonds up to 12 electrons. We focus on the way electrons fill the third shell. Attention is paid in particular to the entry of the first and second electrons to the third shell levels as deduced from the weak magnetic field dependence. The experimental third shell spectrum is then compared to spectra generated from a 3-dimensional density functional calculation, and a modified parabolic potential and constant interaction model.

Original languageEnglish (US)
Pages (from-to)63-67
Number of pages5
JournalPhysica E: Low-Dimensional Systems and Nanostructures
Volume11
Issue number2-3
DOIs
StatePublished - Oct 2001

Fingerprint

Semiconductor quantum dots
energy spectra
quantum dots
Electrons
Diamond
electrons
entry
Density functional theory
Diamonds
diamonds
Magnetic fields
Atoms
magnetic fields
atoms
interactions

Keywords

  • Artificial atoms
  • Hund's rules
  • Quantum dots
  • Shell structure

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Addition energy spectrum of a quantum dot disk up to the third shell. / Austing, D. G.; Tokura, Y.; Tarucha, S.; Matagne, P.; Leburton, Jean-Pierre.

In: Physica E: Low-Dimensional Systems and Nanostructures, Vol. 11, No. 2-3, 10.2001, p. 63-67.

Research output: Contribution to journalArticle

Austing, D. G. ; Tokura, Y. ; Tarucha, S. ; Matagne, P. ; Leburton, Jean-Pierre. / Addition energy spectrum of a quantum dot disk up to the third shell. In: Physica E: Low-Dimensional Systems and Nanostructures. 2001 ; Vol. 11, No. 2-3. pp. 63-67.
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