Chirality-selective Raman scattering of the D mode in carbon nanotubes - art. no. 121407

Authors
Maultzsch, J Reich, S Thomsen, C
Citation
J. Maultzsch et al., Chirality-selective Raman scattering of the D mode in carbon nanotubes - art. no. 121407, PHYS REV B, 6412(12), 2001, pp. 1407
Citations number
19
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B
ISSN journal
01631829 → ACNP
Volume
6412
Issue
12
Year of publication
2001
Database
ISI
SICI code
0163-1829(20010915)6412:12<1407:CRSOTD>2.0.ZU;2-W
Abstract
We show that D-mode Raman scattering in single-walled carbon nanotubes is d ue to a double-resonant Raman process. The unusual shift of the D-mode freq uency with excitation energy is even expected for a single nanotube. The ma gnitude of the shift and the D-mode frequency depend strongly on the tube's diameter and chirality. Only tubes with (n(1)-n(2))/3n integer contribute to the D-mode spectrum because of the particular electronic structure of ca rbon nanotubes.