Physics – Condensed Matter – Materials Science
Scientific paper
2005-10-17
Phys. Rev. B 72, 205438 (2005)
Physics
Condensed Matter
Materials Science
Physical Review B, in print, 17 pages, 16 figures
Scientific paper
10.1103/PhysRevB.72.205438
We present a comprehensive study of the chiral-index assignment of carbon nanotubes in aqueous suspensions by resonant Raman scattering of the radial breathing mode. We determine the energies of the first optical transition in metallic tubes and of the second optical transition in semiconducting tubes for more than 50 chiral indices. The assignment is unique and does not depend on empirical parameters. The systematics of the so-called branches in the Kataura plot are discussed; many properties of the tubes are similar for members of the same branch. We show how the radial breathing modes observed in a single Raman spectrum can be easily assigned based on these systematics. In addition, empirical fits provide the energies and radial breathing modes for all metallic and semiconducting nanotubes with diameters between 0.6 and 1.5 nm. We discuss the relation between the frequency of the radial breathing mode and tube diameter. Finally, from the Raman intensities we obtain information on the electron-phonon coupling.
Maultzsch Janina
Reich Sebastian
Telg H.
Thomsen Christian
No associations
LandOfFree
Radial breathing mode of single-walled carbon nanotubes: Optical transition energies and chiral-index assignment does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Radial breathing mode of single-walled carbon nanotubes: Optical transition energies and chiral-index assignment, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Radial breathing mode of single-walled carbon nanotubes: Optical transition energies and chiral-index assignment will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-229463