Aharanov-Bohm effect for the edge states of zigzag carbon nanotubes
Mesoscale and Nanoscale Physics
2008-02-01 v1 Materials Science
Abstract
Two delocalized states of metallic zigzag carbon nanotubes near the Dirac point can be localized by the Aharanov-Bohm magnetic field around 20 Tesla. The dependence of the localization on the length and diameter of the nanotubes shows that the localization-delocalization transition can be observed for 2 nm diameter tube. The mechanism of the localization is explained in terms of the deformation-induced gauge field, which shows a topological nature of the localization. The transition from the delocalized states to the localized states can be observed by scanning tunneling microscopy and spectroscopy. A similarity between the transition and the spin Hall effect is discussed.
Keywords
Cite
@article{arxiv.0710.3904,
title = {Aharanov-Bohm effect for the edge states of zigzag carbon nanotubes},
author = {K. Sasaki and M. Suzuki and R. Saito},
journal= {arXiv preprint arXiv:0710.3904},
year = {2008}
}
Comments
7 pages, 4 figures