Slava V. Rotkin

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The electronic properties of carbon nanotubes (NTs) in a uniform transverse field are investigated within a single orbital tight-binding (TB) model. For doped nanotubes, the dielectric function is found to depend not only on symmetry of the tube, but also on radius and Fermi level position. Bandgap opening/closing is predicted for zigzag tubes, while it is(More)
Short single-walled carbon nanotubes (SWNTs) have been proposed as good candidates for artificial nano-scale channels due to their small size and stable structure. Unlike many insulating biological channels in nature, the nanotubes respond to external charges and electric potentials effectively due their delocalized /spl pi/-electrons. We study the(More)
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