Quantum-dot transport in carbon nanotubes

Transport measurements on a bundle of single-walled carbon nanotubes have b een made below 4.2 K as a function of side gate and source-drain bias volta ge. The transport of an individual nanotube is described by the Coulomb blo ckade effect. The zero-dimensional quantum states of the nanotube become cl ear for measurements of large bias voltage. In addition, we present prelimi nary results of microwave application to the SWNT dot, and the results can be qualitatively explained by classical coupling to the dot. (C) 2000 Acade mic Press.