The level spectrum of a single-walled carbon nanotube rope, studied by transport spectroscopy, shows Zeeman splitting in a magnetic field parallel to the tube axis. The pattern of splittings implies that the spin of the ground state alternates by 1/2 as consecutive electrons are added. Other aspects of the Coulomb blockade characteristics, including the current-voltage traces and peak heights, also show corresponding even-odd effects.
@article{arxiv.cond-mat/9804154,
title = {Spin splitting and even-odd effects in carbon nanotubes},
author = {David H. Cobden and Marc Bockrath and Paul L. McEuen and Andrew G. Rinzler and Richard E. Smalley},
journal= {arXiv preprint arXiv:cond-mat/9804154},
year = {2009}
}
Comments
Preprint, pdf format only, 4 pages including figures