Maultzsch J (2007)
Publication Status: Published
Publication Type: Journal article
Publication year: 2007
Publisher: AMERICAN PHYSICAL SOC
Book Volume: 99
Article Number: 027402
Journal Issue: 2
DOI: 10.1103/PhysRevLett.99.027402
Open Access Link: https://arxiv.org/abs/0705.3986
We report the existence of broad and weakly asymmetric features in the high-energy (G) Raman modes of freely suspended metallic carbon nanotubes of defined chiral index. A significant variation in peak width (from 12 cm(-1) to 110 cm(-1)) is observed as a function of the nanotube's chiral structure. When the nanotubes are electrostatically gated, the peak widths decrease. The broadness of the Raman features is understood as the consequence of coupling of the phonon to electron-hole pairs, the strength of which varies with the nanotube chiral index and the position of the Fermi energy.
APA:
Maultzsch, J. (2007). Variable electron-phonon coupling in isolated metallic carbon nanotubes observed by Raman scattering. Physical Review Letters, 99(2). https://dx.doi.org/10.1103/PhysRevLett.99.027402
MLA:
Maultzsch, Janina. "Variable electron-phonon coupling in isolated metallic carbon nanotubes observed by Raman scattering." Physical Review Letters 99.2 (2007).
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