Single-electron tunneling through a double quantum dot

The artificial molecule

verfasst von

R. Blick, R. Haug, J. Weis, D. Pfannkuche, K. Klitzing, K. Eberl

Abstract

Single-electron tunneling through two coupled quantum dots is strongly influenced by the electrostatic interaction between the dots. At low temperatures, we observe the formation of a molecularlike state in the double-dot system. The dots are defined by split gates in an (Formula presented)(Formula presented)As-GaAs heterostructure. They are of different size and coupled in series, leading to two different charging energies. In the linear transport regime we find the charging diagram for the double quantum dot. This diagram exhibits the operation points of the system to be employed as an electron pump.

Externe Organisation(en)

Max-Planck-Institut für Festkörperforschung

Typ

Artikel

Journal

Physical Review B - Condensed Matter and Materials Physics

Band

53

Seiten

7899-7902

Anzahl der Seiten

4

ISSN

1098-0121

Publikationsdatum

01.01.1996

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Elektronische, optische und magnetische Materialien, Physik der kondensierten Materie

Elektronische Version(en)

https://doi.org/10.1103/PhysRevB.53.7899 (Zugang: Unbekannt)