Title

Addition Spectra Of Quantum Dots In Strong Magnetic Fields

Abstract

We consider the magnetic field dependence of the chemical potential for parabolically confined quantum dots in a strong magnetic field. Approximate expressions based on the notion that the size of a dot is determined by a competition between confinement and interaction energies are shown to be consistent with exact diagonalization studies for small quantum dots. Fine structure is present in the magnetic field dependence which cannot be explained without a full many-body description and is associated with ground-state level crossings as a function of confinement strength or Zeeman interaction strength. Some of this fine structure is associated with precursors of the bulk incompressible states responsible for the fractional quantum Hall effect. © 1993 The American Physical Society.

Publication Date

1-1-1993

Publication Title

Physical Review Letters

Volume

71

Issue

19

Number of Pages

3194-3197

Document Type

Article

Identifier

scopus

Personal Identifier

scopus

DOI Link

https://doi.org/10.1103/PhysRevLett.71.3194

Socpus ID

3743105436 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/3743105436

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