Quantum transport in a multiwalled carbon nanotube

Details Quantum transport in a multiwalled carbon nanotube Quantum transport in a multiwalled carbon nanotube

1995-12-13

arxiv.org/abs/cond-mat/9512106v2

Physics

Condensed Matter

Phys. Rev. Letters (in press) - 14 pages

Scientific paper

10.1103/PhysRevLett.76.479

We report on electrical resistance measurements of an individual carbon nanotube down to a temperature T=20 mK. The conductance exhibits a ln T dependence and saturates at low temperature. A magnetic field applied perpendicular to the tube axis, increases the conductance and produces aperiodic fluctuations. The data find a global and coherent interpretation in terms of two-dimensional weak localization and universal conductance fluctuations in mesoscopic conductors. The dimensionality of the electronic system is discussed in terms of the peculiar structure of carbon nanotubes.

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