Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Superconducting tantalum nitride-based normal
  metal-insulator-superconductor tunnel junctions   We report the development of superconducting tantalum nitride (TaN$_{x} $)
normal metal-insulator-superconductor (NIS) tunnel junctions. For the
insulating barrier, we used both AlO$_{x}$ and TaO$_{x}$
(Cu-AlO$_{x}$-Al-TaN$_{x} $ and Cu-TaO$_{x}$-TaN$_{x} $), with both devices
exhibiting temperature dependent current-voltage characteristics which follow
the simple one-particle tunneling model. The superconducting gap follows a BCS
type temperature dependence, rendering these devices suitable for sensitive
thermometry and bolometry from the superconducting transition temperature
$T_{\text{C}}$ of the TaN$_{x} $ film at $\sim 5$ K down to $\sim$ 0.5 K.
Numerical simulations were also performed to predict how junction parameters
should be tuned to achieve electronic cooling at temperatures above 1 K.

8
The categories of this paper are: hep-ex
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The categories of this paper are: hep-lat
21
The categories of this paper are: adap-org
27
The categories of this paper are: comp-gas
6
The categories of this paper are: astro-ph
34
The categories of this paper are: chem-ph
10
The categories of this paper are: q-bio
1
The categories of this paper are: cs
32
The categories of this paper are: atom-ph
23
The categories of this paper are: solv-int
33
The categories of this paper are: plasm-ph
25
The categories of this paper are: patt-sol
18
The categories of this paper are: econ
16
The categories of this paper are: stat
15
The categories of this paper are: nucl-ex
29
The categories of this paper are: funct-an