Please use this identifier to cite or link to this item: https://physrep.ff.bg.ac.rs/handle/123456789/702
Title: Raman excitation profiles of metallic single-walled carbon nanotubes
Authors: Nikolić, Božidar 
Issue Date: 10-Mar-2010
Journal: Journal of physics. Condensed matter : an Institute of Physics journal
Abstract: 
In this work Raman excitation profiles of metallic carbon nanotubes have been calculated and thoroughly analyzed. Suppression and vanishing of the high-energy resonance is completely confirmed by our calculations. The presented results clearly show that the suppression, and finally the absence, of the resonance is caused by electron-phonon interaction and interference effects. Electron-phonon coupling for low-energy resonance is significantly larger than for high-energy resonance. Furthermore, the transition energies of those two transitions are close enough to make interference effects important. The type of interference is determined by the sign of the electron-phonon interaction matrix elements. Constructive interference makes the low-energy resonance more intensive and destructive interference destroys the high-energy resonance for most of the metallic tubes.
URI: https://physrep.ff.bg.ac.rs/handle/123456789/702
ISSN: 0953-8984
DOI: 10.1088/0953-8984/22/9/095302
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