Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Multigap superconductivity in locally non-centrosymmetric SrPtAs: An As
  nuclear quadrupole resonance investigation   We report detailed $^{75}$As-NQR investigations of the locally
non-centrosymmetric superconductor SrPtAs. The spin-lattice relaxation studies
prove weakly coupled multi-gap superconductivity. The Hebel-Slichter peak, a
hallmark of conventional superconductivity, is strongly suppressed, which
points to an unconventional superconducting state. The observed behavior
excludes a superconducting order parameter with line nodes and is consistent
with proposed $f$-wave and chiral $d$-wave order parameters.

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The categories of this paper are: eess
32
The categories of this paper are: atom-ph
33
The categories of this paper are: plasm-ph
25
The categories of this paper are: patt-sol
9
The categories of this paper are: nlin
34
The categories of this paper are: chem-ph
22
The categories of this paper are: chao-dyn
30
The categories of this paper are: q-alg
29
The categories of this paper are: funct-an
35
The categories of this paper are: mtrl-th
31
The categories of this paper are: ao-sci
1
The categories of this paper are: cs
12
The categories of this paper are: nucl-th
8
The categories of this paper are: hep-ex
24
The categories of this paper are: dg-ga
0
The categories of this paper are: hep-ph