Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Superconductivity in Nb2Pd3Te5 and Chemically-Doped Ta2Pd3Te5   We report on the superconductivity in ternary transition metal tellurides
Ta2Pd3Te5 and Nb2Pd3Te5, which have a one-dimensional crystal structure.
Single-crystalline and polycrystalline samples of Ta2Pd3Te5 show nonmetallic
electron conduction, while Ti or W doping results in metallic behavior with a
bulk superconducting transition at 2-4 K. In contrast, the polycrystalline
samples of Nb2Pd3Te5, which are found to be isostructural to Ta2Pd3Te5, show a
bulk superconducting transition at 3.3 K. The crystal structure and physical
properties of Ta2Pd3Te5 and Nb2Pd3Te5 are also discussed in comparison with a
candidate excitonic insulator Ta2NiSe5.

19
The categories of this paper are: eess
36
The categories of this paper are: cmp-lg
13
The categories of this paper are: quant-ph
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The categories of this paper are: econ
9
The categories of this paper are: nlin
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The categories of this paper are: stat
30
The categories of this paper are: q-alg
2
The categories of this paper are: math
27
The categories of this paper are: comp-gas
5
The categories of this paper are: gr-qc
33
The categories of this paper are: plasm-ph
14
The categories of this paper are: math-ph
15
The categories of this paper are: nucl-ex
3
The categories of this paper are: physics
26
The categories of this paper are: bayes-an
12
The categories of this paper are: nucl-th