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Transport through an isolated artificial molecule formed from stacked self-assembled quantum dots

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Author

Summary, in English

We investigate resonant tunneling through two coupled self-assembled quantum dots. The strong confinement and the high crystalline quality provided by the self-assembled dots, in combination with the tunneling coupling between the dots, create a system that may be thought of as an artificial molecule. We are able to isolate one single artificial molecule and detailed investigations of the electrical properties are performed. Peak-to-valley ratios above 1000 and full width half maximum of a few millivolts are measured at 4 K. By changing the temperature we also observe Coulomb blockade effects in a different way. (C) 2003 American Institute of Physics.

Publishing year

2003

Language

English

Pages

2655-2657

Publication/Series

Applied Physics Letters

Volume

82

Issue

16

Document type

Journal article

Publisher

American Institute of Physics (AIP)

Topic

  • Condensed Matter Physics
  • Electrical Engineering, Electronic Engineering, Information Engineering

Status

Published

ISBN/ISSN/Other

  • ISSN: 0003-6951