title: Electron-phonon interaction and transport in semiconducting carbon nanotubes.
abstract: We calculate the electron-phonon scattering and binding in semiconducting carbon nanotubes, within a tight-binding model. The mobility is derived using a multiband Boltzmann treatment. At high fields, the dominant scattering is interband scattering by LO phonons corresponding to the corners K of the graphene Brillouin zone. The drift velocity saturates at approximately half the graphene Fermi velocity. The calculated mobility as a function of temperature, electric field, and nanotube chirality are well reproduced by a simple interpolation formula. Polaronic binding give a band-gap renormalization of approximately 70 meV, an order of magnitude larger than expected. Coherence lengths can be quite long but are strongly energy dependent.
authors.affiliation: IBM Research Division, T. J. Watson Research Center, Yorktown Heights, NY 10598, USA.
authors.forename: Vasili
authors.initials: V
authors.lastname: Perebeinos
authors.forename: J
authors.initials: J
authors.lastname: Tersoff
authors.forename: Phaedon
authors.initials: P
authors.lastname: Avouris