@article{1f8c4f98f5bf45da8ec32967aa2d32d6,
title = "Probing the electronic trigonal warping effect in individual single-wall carbon nanotubes using phonon spectra",
abstract = "We have studied the trigonal warping effect in metallic carbon nanotubes using resonance Raman scattering and examining the G′-band profile for individual metallic single-wall carbon nanotubes. We show that the observed splitting in the G′-band phonon spectra is directly correlated with the splitting in the singularities of the joint density of electronic states, i.e., detailed information about the 1D electronic structure is extracted from a phonon measurement. By correlating the phonon data with the calculated electronic structure for several (n,m) nanotubes, we were able to determine the G′-band dispersion [(∂ωG'/∂Elaser) = 108 ± 6 cm-1/eV] by using a single laser energy.",
author = "{Souza Filho}, {A. G.} and A. Jorio and Samsonidze, {Ge G.} and G. Dresselhaus and Dresselhaus, {M. S.} and Swan, {Anna K.} and {\"U}nl{\"u}, {M. S.} and Goldberg, {B. B.} and R. Saito and Hafner, {J. H.} and Lieber, {C. M.} and Pimenta, {M. A.}",
note = "Funding Information: The authors A.G.S.F. and A.J. acknowledge financial support from the Brazilian agencies CAPES and CNPq, respectively. A.K.S., M.S.U., and B.B.G. acknowledge support from Renishaw Inc. The experimental work was performed at Boston University at the Photonics Center, operated in conjunction with the Department of Physics and the Department of Electrical and Computer Engineering. We acknowledge the NSF/CNPq joint collaboration program (Grant No. NSF INT 00-00408 and CNPq Grant No. 910120/99-4). R.S. acknowledges a Grant-in-Aid (No. 13440091) from the Ministry of Education, Japan. The MIT authors acknowledge support under NSF Grants DMR 01-16042, INT 98-15744.",
year = "2002",
month = mar,
day = "5",
doi = "10.1016/S0009-2614(02)00102-1",
language = "English",
volume = "354",
pages = "62--68",
journal = "Chemical Physics Letters",
issn = "0009-2614",
publisher = "Elsevier",
number = "1-2",
}