Observation of breathing-like modes in an individual multiwalled carbon nanotube

Christian Spudat; Matthias Müller; Lothar Houben; Janina Maultzsch; Karin Goss; Christian Thomsen; Claus M Schneider; Carola Meyer

doi:10.1021/nl102305a

Observation of breathing-like modes in an individual multiwalled carbon nanotube

Nano Lett. 2010 Nov 10;10(11):4470-4. doi: 10.1021/nl102305a. Epub 2010 Oct 13.

Authors

Christian Spudat¹, Matthias Müller, Lothar Houben, Janina Maultzsch, Karin Goss, Christian Thomsen, Claus M Schneider, Carola Meyer

Affiliation

¹ Institut für Festkörperforschung IFF-9, Forschungszentrum Jülich and JARA Jülich Aachen Research Alliance, D-52425 Jülich, Germany.

PMID: 20942383
DOI: 10.1021/nl102305a

Abstract

We study collective vibrational breathing modes in the Raman spectrum of a multiwalled carbon nanotube. In correlation with high-resolution transmission electron microscopy, we find that these modes have energies differing by more than 23% from the radial breathing modes of the corresponding single-walled nanotubes. This shift in energy is explained with intershell interactions using a model of coupled harmonic oscillators. The strength of this interaction is related to the coupling strength expected for few-layer graphene.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Computer Simulation
Light
Materials Testing
Models, Chemical*
Nanotubes, Carbon / chemistry*
Nanotubes, Carbon / ultrastructure*
Particle Size
Porosity
Scattering, Radiation

Substances

Nanotubes, Carbon