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Potential modulations along carbon nanotubes

Author

Listed:
  • Sander J. Tans

    (Delft University of Technology
    University of California)

  • Cees Dekker

    (Delft University of Technology)

Abstract

True molecular-scale transistors have been realized using semiconducting carbon nanotubes1,2,3,4,5, but no direct measurements of the underlying electronic structure of these have been made. Here we use a new scanning-probe technique to investigate the potential profile of these devices. Surprisingly, we find that the potential does not vary in a smooth, monotonic way, but instead shows marked modulations with a typical period of about 40 nm. Our results have direct relevance for modelling this promising class of molecular devices.

Suggested Citation

  • Sander J. Tans & Cees Dekker, 2000. "Potential modulations along carbon nanotubes," Nature, Nature, vol. 404(6780), pages 834-835, April.
    • Handle: RePEc:nat:nature:v:404:y:2000:i:6780:d:10.1038_35009026
    DOI: 10.1038/35009026
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