Journal
PHYSICAL REVIEW B
Volume 62, Issue 11, Pages 6975-6978Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.62.6975
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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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