Fermi level quantum numbers and secondary gap of conducting carbon nanotubes

Details Fermi level quantum numbers and secondary gap of conducting carbon nanotubes Fermi level quantum numbers and secondary gap of conducting carbon nanotubes

2000-04-20

arxiv.org/abs/cond-mat/0004347v1

Solid State Communications 116 (2000) 265-7

Physics

Condensed Matter

Soft Condensed Matter

6 pages, 2 figures

Scientific paper

10.1016/S0038-1098(00)00319-7

For the single-wall carbon nanotubes conducting in the simplest tight binding model, the complete set of line group symmetry based quantum numbers for the bands crossing at Fermi level are given. Besides linear (k), helical (k'} and angular momenta, emerging from roto-translational symmetries, the parities of U axis and (in the zig-zag and armchair cases only) mirror planes appear in the assignation. The helical and angular momentum quantum numbers of the crossing bands never vanishes, what supports proposed chirality of currents. Except for the armchair tubes, the crossing bands have the same quantum numbers and, according to the non-crossing rule, a secondary gap arises, as it is shown by the accurate tight-binding calculation. In the armchair case the different vertical mirror parity of the crossing bands provides substantial conductivity, though kF is slightly decreased.

Affiliated with

Also associated with

No associations

Rating

Fermi level quantum numbers and secondary gap of conducting carbon nanotubes does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Fermi level quantum numbers and secondary gap of conducting carbon nanotubes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fermi level quantum numbers and secondary gap of conducting carbon nanotubes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-144085