Transport spectroscopy of a confined electron system under a gate tip

authored by
J. Weis, R. J. Haug, K. V. Klitzing, K. Ploog
Abstract

Conductance resonances measured for split-gate structures around threshold are interpreted in terms of single-electron tunneling through a quantum dot beneath the tip of the gate finger. Measurements at different values of source-drain voltage allow the spectroscopy of excited states for a fixed number of electrons in the quantum dot. The measured magnetic-field dependence of the conductance resonances is consistent with a minimal number of seven electrons in the quantum dot.

External Organisation(s)
Max Planck Institute for Solid State Research (MPI-FKF)
Type
Article
Journal
Physical Review B
Volume
46
Pages
12837-12840
No. of pages
4
ISSN
0163-1829
Publication date
01.01.1992
Publication status
Published
Peer reviewed
Yes
ASJC Scopus subject areas
Condensed Matter Physics
Electronic version(s)
https://doi.org/10.1103/PhysRevB.46.12837 (Access: Unknown)