Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Strongly disordered TiN and NbTiN s-wave superconductors probed by
  microwave electrodynamics   We probe the effects of strong disorder (2.4 < kFl < 8.6) on
superconductivity in thin films of niobium titanium nitride and titanium
nitride by measuring the microwave electrodynamics in coplanar waveguide
resonators. We find a gradual evolution of the electromagnetic response with
disorder, deviating from Mattis-Bardeen theory, for both materials. This result
can be understood as due to changes in the quasiparticle density of states,
induced by the short elastic scattering length. The observations are consistent
with a model using an effective pair breaker, dependent on the level of
disorder.

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The categories of this paper are: quant-ph
2
The categories of this paper are: math
9
The categories of this paper are: nlin
17
The categories of this paper are: q-fin
29
The categories of this paper are: funct-an
5
The categories of this paper are: gr-qc
20
The categories of this paper are: acc-phys
18
The categories of this paper are: econ
6
The categories of this paper are: astro-ph
16
The categories of this paper are: stat
7
The categories of this paper are: hep-th
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The categories of this paper are: nucl-th
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The categories of this paper are: hep-lat
28
The categories of this paper are: alg-geom
33
The categories of this paper are: plasm-ph
32
The categories of this paper are: atom-ph