Title
Evidence for the existence of two breathinglike phonon modes in infinite bundles of single-walled carbon nanotubesEvidence for the existence of two breathinglike phonon modes in infinite bundles of single-walled carbon nanotubes
Author
Faculty/Department
Faculty of Sciences. Physics
Research group
Department of Physics - other
Publication type
article
Publication
Lancaster, Pa,
Subject
Physics
Source (journal)
Physical review : B : condensed matter and materials physics. - Lancaster, Pa, 1998 - 2015
Volume/pages
63(2001):23, p. 1-4
ISSN
1098-0121
1550-235X
1098-0121
Article Reference
233407
Carrier
E-only publicatie
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
We study the low-frequency region of the Raman spectra of infinite bundles of identical single-walled carbon nanotubes within a Valence force field model of the lattice dynamics and a bond-polarizability model for the Raman intensity. It is obtained that two breathinglike phonon modes are present in such bundles for each tube type. Based on this prediction, an alternative interpretation of the experimental Raman spectra is proposed. In particular, an explanation is given for the appearence of resonant Raman lines that are predicted as nonresonant within the noninteracting tube picture.
Full text (open access)
https://repository.uantwerpen.be/docman/irua/b5fb82/4188.pdf
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