Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Structural and electrical characterization of hybrid metal-polypyrrole
  nanowires   We present here the synthesis and structural characterization of hybrid
Au-polypyrrole-Au and Pt- polypyrrole-Au nanowires together with a study of
their electrical properties from room-temperature down to very low temperature.
A careful characterization of the metal-polymer interfaces by trans- mission
electron microscopy revealed that the structure and mechanical strength of
bottom and upper interfaces are very different. Variable temperature electrical
transport measurements were performed on both multiple nanowires - contained
within the polycarbonate template - and single nanowires. Our data show that
the three-dimensional Mott variable-range-hopping model provides a complete
framework for the understanding of transport in PPy nanowires, including
non-linear current-voltage characteristics and magnetotransport at low
temperatures.

15
The categories of this paper are: nucl-ex
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The categories of this paper are: stat
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The categories of this paper are: hep-lat
2
The categories of this paper are: math
9
The categories of this paper are: nlin
20
The categories of this paper are: acc-phys
13
The categories of this paper are: quant-ph
37
The categories of this paper are: supr-con
5
The categories of this paper are: gr-qc
27
The categories of this paper are: comp-gas
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The categories of this paper are: bayes-an
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The categories of this paper are: adap-org
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The categories of this paper are: atom-ph
33
The categories of this paper are: plasm-ph
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The categories of this paper are: alg-geom
6
The categories of this paper are: astro-ph