Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Observation of a Logarithmic Temperature Dependence of Thermoelectric
  Power on Multiwall Carbon Nanotubes   We have investigated the thermoelectric power (TEP) of millimeter-long
aligned multiwall carbon nanotubes down to a temperature of $T$=1.5 K, and
observed for the first time an accurate $T {\rm ln} T$ dependence at low
temperatures. This behavior is possibly originated from the repulsive
interaction between the electrons in a disordered local environment.

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The categories of this paper are: eess
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The categories of this paper are: stat
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The categories of this paper are: hep-th
6
The categories of this paper are: astro-ph
28
The categories of this paper are: alg-geom
12
The categories of this paper are: nucl-th
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The categories of this paper are: nucl-ex
34
The categories of this paper are: chem-ph
10
The categories of this paper are: q-bio
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The categories of this paper are: quant-ph
0
The categories of this paper are: hep-ph
5
The categories of this paper are: gr-qc
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The categories of this paper are: ao-sci
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The categories of this paper are: plasm-ph
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The categories of this paper are: cmp-lg
1
The categories of this paper are: cs