Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Superconducting and normal state properties of noncentrosymmetric
  superconductor NbOs$_{2}$ investigated by muon spin relaxation and rotation   Noncentrosymmetric superconductors with $\alpha$-manganese structure has
attracted much attention recently, after the discovery of time-reversal
symmetry breaking in all the members of Re$_{6}$X (X = Ti, Hf, Zr) family.
Similar to Re$_{6}$X, NbOs$_{2}$ also adopts $\alpha$-$Mn$ structure and found
to be superconducting with critical temperature $T_{c}$ $\approx$ 2.7 K. The
results of the resistivity, magnetization, specific heat and muon-spin
relaxation/rotation measurements show that NbOs$_{2}$ is a weakly coupled
type-II superconductor. Interestingly, the zero-field muon experiments indicate
that the time-reversal symmetry is preserved in the superconducting state. The
low-temperature transverse-field muon measurements and the specific heat data
evidence a conventional isotropic fully gapped superconductivity. However, the
calculated electronic properties in this material show that the NbOs$_{2}$ is
positioned close to the band of unconventionality of the Uemura plot,
indicating that NbOs$_{2}$ potentially borders an unconventional
superconducting ground state.

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The categories of this paper are: physics
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The categories of this paper are: stat
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The categories of this paper are: math
6
The categories of this paper are: astro-ph
29
The categories of this paper are: funct-an
17
The categories of this paper are: q-fin
26
The categories of this paper are: bayes-an
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The categories of this paper are: hep-ph
28
The categories of this paper are: alg-geom
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The categories of this paper are: quant-ph
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The categories of this paper are: adap-org
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The categories of this paper are: q-alg
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The categories of this paper are: atom-ph
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The categories of this paper are: gr-qc
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The categories of this paper are: supr-con
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The categories of this paper are: mtrl-th