Competing channels in single-electron tunneling through a quantum dot

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

Coulomb blockade effects are investigated in lateral transport through a quantum dot defined in a two-dimensional electron gas. Tunneling through excited states of the quantum dot is observed for various tunneling barriers. It is shown that transport occurring via transitions between ground states with different numbers of electrons can be suppressed by the occupation of excited states. Measurements in a magnetic field parallel to the current give evidence for tunneling processes involving states with different spin.

External Organisation(s)
Max Planck Institute for Solid State Research (MPI-FKF)
Type
Article
Journal
Physical review letters
Volume
71
Pages
4019-4022
No. of pages
4
ISSN
0031-9007
Publication date
01.01.1993
Publication status
Published
Peer reviewed
Yes
ASJC Scopus subject areas
General Physics and Astronomy
Electronic version(s)
https://doi.org/10.1103/PhysRevLett.71.4019 (Access: Unknown)