Potential modulations along carbon nanotubes

Sander J. Tans and Cees Dekker ()
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Sander J. Tans: Delft University of Technology
Cees Dekker: Delft University of Technology

Nature, 2000, vol. 404, issue 6780, 834-835

Abstract: 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.

Date: 2000
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DOI: 10.1038/35009026

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