Observation of breathing-like modes in an individual multiwalled carbon nanotube.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 20942383.
- Also identified by DOI 10.1021/nl102305a.
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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.
Medical subject headings
- Models, Chemical
- Nanotubes, Carbon