Nanotubes can be semiconducting or metallic depending on their diameter and chirality. This feature is very interesting for many applications. In her Perspective, [Dresselhaus][1] highlights the reports by [ Ouyang et al .][2] and [ Collins et al .][3], which advance our understanding of the nanotube conduction process substantially and help us move toward applying this knowledge in nanoelectronics. [1]: http://www.sciencemag.org/cgi/content/full/292/5517/650 [2]: http://www.sciencemag.org/cgi/content/short/292/5517/702 [3]: http://www.sciencemag.org/cgi/content/short/292/5517/706
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M. S. Dresselhaus (2001) studied this question.
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