Inelastic Quantum Transport and Peierls-like Mechanism in Carbon Nanotubes

Details Inelastic Quantum Transport and Peierls-like Mechanism in Carbon Nanotubes Inelastic Quantum Transport and Peierls-like Mechanism in Carbon Nanotubes

2006-08-17

arxiv.org/abs/cond-mat/0608394v1

Phys. Rev. Lett. 97, 076804 (2006)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 4 figures

Scientific paper

10.1103/PhysRevLett.97.076804

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, $\hbar\omega_{0}/2$, above (below) the charge neutrality point. This mechanism, which is prevented by Pauli blocking at low bias voltages, is activated at bias voltages in the order of $\hbar\omega_{0}$.

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