Raman spectroscopy has been the most extensively employed method to study carbon nanotubes at high pressures. This review covers reversible pressure-induced changes of the lattice dynamics and structure of single- and multi-wall carbon nanotubes as well as irreversible transformations induced by high pressures. The interplay of covalent and van-der-Waals bonding in single-wall nanotube bundles and a structural distortion near 2 GPa are discussed in detail. Attempts of transforming carbon nanotubes into diamond and other "superhard" phases are reviewed critically.
@article{arxiv.cond-mat/0307356,
title = {Raman spectroscopy on carbon nanotubes at high pressure},
author = {I. Loa},
journal= {arXiv preprint arXiv:cond-mat/0307356},
year = {2009}
}
Comments
33 pages, 20 figures, review article, to appear in J. Raman Spectroscopy