Conductance of tubular nanowires with disorder |
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Authors: | L Serra and M-S Choi |
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Institution: | (1) Cavendish Laboratory, University of Cambridg, JJ Thomson Avenue, Cambridge, CB3 0HE, UK |
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Abstract: | 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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Keywords: | |
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