https://doi.org/10.1140/epjb/e2009-00058-x
Electronic properties of double-layer carbon nanotubes
1
Institute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, 043 53 Kosice, Slovak Republic
2
Joint Institute for Nuclear Research, BLTP, 141980 Dubna, Moscow region, Russia
Corresponding author: a pincak@saske.sk
Received:
7
August
2008
Revised:
15
January
2009
Published online:
18
February
2009
The electronic spectra for double-wall zigzag and armchair nanotubes are found. The influence of nanotube curvatures on the electronic spectra is also calculated. Our finding that the outer shell is hole doped by the inner shell is in the difference between Fermi levels of individual shells which originate from the different hybridization of π orbital. The shift and rotation of the inner nanotube with respect to the outer nanotube are investigated. We found stable semimetal characteristics of the armchair DWNTs in regard of the shift and rotation of the inner nanotube. We predict the shift of kF towards the bigger wave vectors with decreasing of the radius of the armchair nanotube.
PACS: 73.63.-b – Electronic transport in nanoscale materials and structures / 73.63.Fg – Nanotubes / 73.22.-f – Electronic structure of nanoscale materials: clusters, nanoparticles, nanotubes, and nanocrystals
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2009
