Competition between magnetic field dependent band structure and coherent backscattering in multiwall carbon nanotubes
Mesoscale and Nanoscale Physics
2009-11-11 v1
Abstract
Magnetotransport measurements in large diameter multiwall carbon nanotubes (20-40 nm) demonstrate the competition of a magnetic-field dependent bandstructure and Altshuler-Aronov-Spivak oscillations. By means of an efficient capacitive coupling to a backgate electrode, the magnetoconductance oscillations are explored as a function of Fermi level shift. Changing the magnetic field orientation with respect to the tube axis and by ensemble averaging, allows to identify the contributions of different Aharonov-Bohm phases. The results are in qualitative agreement with numerical calculations of the band structure and the conductance.
Keywords
Cite
@article{arxiv.cond-mat/0607034,
title = {Competition between magnetic field dependent band structure and coherent backscattering in multiwall carbon nanotubes},
author = {B. Stojetz and S. Roche and C. Miko and F. Triozon and L. Forro and C. Strunk},
journal= {arXiv preprint arXiv:cond-mat/0607034},
year = {2009}
}
Comments
4 figures, 5 pages