Low frequency Raman studies of multi-wall carbon nanotubes: experiments and theory

Details Low frequency Raman studies of multi-wall carbon nanotubes: experiments and theory Low frequency Raman studies of multi-wall carbon nanotubes: experiments and theory

2002-05-02

arxiv.org/abs/cond-mat/0205031v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 2 eps fig., 2 jpeg fig., RevTex, submitted to Phys. Rev. B

Scientific paper

10.1103/PhysRevB.66.073417

In this paper, we investigate the low frequency Raman spectra of multi-wall carbon nanotubes (MWNT) prepared by the electric arc method. Low frequency Raman modes are unambiguously identified on purified samples thanks to the small internal diameter of the MWNT. We propose a model to describe these modes. They originate from the radial breathing vibrations of the individual walls coupled through the Van der Waals interaction between adjacent concentric walls. The intensity of the modes is described in the framework of bond polarization theory. Using this model and the structural characteristics of the nanotubes obtained from transmission electron microscopy allows to simulate the experimental low frequency Raman spectra with an excellent agreement. It suggests that Raman spectroscopy can be as useful regarding the characterization of MWNT as it is in the case of single-wall nanotubes.

Affiliated with

Also associated with

No associations

Rating

Low frequency Raman studies of multi-wall carbon nanotubes: experiments and theory 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 Low frequency Raman studies of multi-wall carbon nanotubes: experiments and theory, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low frequency Raman studies of multi-wall carbon nanotubes: experiments and theory will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-232011