Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Optimizing the superconducting transition temperature and upper critical
  field of Sn(1-x)In(x)Te   Sn(1-x)In(x)Te is a possible candidate for topological superconductivity.
Previous work has shown that substitution of In for Sn in the topological
crystalline insulator SnTe results in superconductivity, with the transition
temperature, Tc, growing with In concentration. We have performed a systematic
investigation of Sn(1-x)In(x)Te for a broad range of x, synthesizing single
crystals (by a modified floating zone method) as well as polycrystalline
samples. The samples have been characterized by x-ray diffraction, resistivity,
and magnetization. For the single crystals, the maximum Tc is obtained at
x=0.45 with a value of of 4.5 K, as determined by the onset of diamagnetism.

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The categories of this paper are: econ
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The categories of this paper are: q-alg
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The categories of this paper are: chem-ph
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The categories of this paper are: adap-org
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The categories of this paper are: q-bio
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The categories of this paper are: nucl-th
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The categories of this paper are: bayes-an
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The categories of this paper are: supr-con
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The categories of this paper are: hep-ex
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The categories of this paper are: hep-ph
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The categories of this paper are: math-ph
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The categories of this paper are: cs
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The categories of this paper are: plasm-ph
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The categories of this paper are: nlin
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The categories of this paper are: dg-ga
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The categories of this paper are: acc-phys