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Electron-phonon coupling and Peierls transition in metallic nanotubes

A. Sedeki·L. G. Caron·C. Bourbonnais
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Abstract

We reexamine the putative Peierls transition in a (5,5) metallic nanotube. We show that the conduction electrons at the Fermi level do not couple to the longitudinal acoustic phonon but rather to a folded-in graphene zone edge phonon having the proper Kekule modulation symmetry. The calculation for the mean-field transition temperature gives 15 K, a value comparable to previous estimates. We discuss the significance of this transition temperature.

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A. Sedeki, L. G. Caron, C. Bourbonnais. 1999-10-22. Electron-phonon coupling and Peierls transition in metallic nanotubes. https://doi.org/10.1103/physrevb.62.6975

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