Report

Excitation Spectra of Circular, Few-Electron Quantum Dots

See allHide authors and affiliations

Science  05 Dec 1997:
Vol. 278, Issue 5344, pp. 1788-1792
DOI: 10.1126/science.278.5344.1788

You are currently viewing the abstract.

View Full Text

Log in to view the full text

Log in through your institution

Log in through your institution

Abstract

Studies of the ground and excited states in semiconductor quantum dots containing 1 to 12 electrons showed that the quantum numbers of the states in the excitation spectra can be identified and compared with exact calculations. A magnetic field induces transitions between the ground and excited states. These transitions were analyzed in terms of crossings between single-particle states, singlet-triplet transitions, spin polarization, and Hund's rule. These impurity-free quantum dots allow “atomic physics” experiments to be performed in magnetic field regimes not accessible for atoms.

View Full Text