Conductance of tubular nanowires with disorder

Details Conductance of tubular nanowires with disorder Conductance of tubular nanowires with disorder

2009-07-20

arxiv.org/abs/0907.3331v1

Eur. Phys. J. B 71, 97--103 (2009)

Physics

Condensed Matter

Other Condensed Matter

8 pages, 5 figures

Scientific paper

10.1140/epjb/e2009-00280-6

We calculate the conductance of tubular-shaped nanowires having many potential scatterers at random positions. Our approach is based on the scattering matrix formalism and our results analyzed within the scaling theory of disordered conductors. When increasing the energy the conductance for a big enough number of impurities in the tube manifests a systematic evolution from the localized to the metallic regimes. Nevertheless, a conspicuous drop in conductance is predicted whenever a new transverse channel is open. Comparison with the semiclassical calculation leading to purely ohmic behavior is made.

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