Coulomb drag in multiwall armchair carbon nanotubes

A.M. Lunde, Antti-Pekka Jauho

    Research output: Contribution to journalJournal articleResearchpeer-review

    Abstract

    We calculate the transresistivity rho(21) between two concentric armchair nanotubes in a diffusive multiwall carbon nanotube as a function of temperature T and Fermi level epsilon(F). We approximate the tight-binding band structure by two crossing bands with a linear dispersion near the Fermi surface. The cylindrical geometry of the nanotubes and the different parities of the Bloch states are accounted for in the evaluation of the effective Coulomb interaction between charges in the concentric nanotubes. We find a broad peak in rho(21) as a function of temperature at roughly T similar to 0.4T(F). Further, we predict a peak in rho(21) as a function of epsilon(F), which can be studied experimentally by changing a gate voltage or by doping.
    Original languageEnglish
    JournalSemiconductor Science and Technology
    Volume19
    Issue number4
    Pages (from-to)433-443
    ISSN0268-1242
    DOIs
    Publication statusPublished - 2004

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