Inelastic quantum transport and peierls-like mechanism in carbon nanotubes

We report on a theoretical study of inelastic quantum transport in (3m,0) carbon nanotubes. By using a many-body description of the electron-phonon interaction in Fock space, a novel mechanism involving optical phonon emission (absorption) is shown to induce an unprecedented energy-gap opening at ha...

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Bibliographic Details
Published inPhysical review letters Vol. 97; no. 7; p. 076804
Main Authors Foa Torres, Luis E F, Roche, Stephan
Format Journal Article
LanguageEnglish
Published United States 18.08.2006
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Summary:We report on a theoretical study of inelastic quantum transport in (3m,0) carbon nanotubes. By using a many-body description of the electron-phonon interaction in Fock space, a novel mechanism involving optical phonon emission (absorption) is shown to induce an unprecedented energy-gap opening at half the phonon energy, variant Planck's over 2piomega0/2, above (below) the charge neutrality point. This mechanism, which is prevented by Pauli blocking at low bias voltages, is activated at bias voltages on the order of variant Planck's over 2piomega0.
ISSN:0031-9007
1079-7114
DOI:10.1103/physrevlett.97.076804