Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Very Strong Superconducting Proximity Effects in PbS Semiconductor
  Nanowires   We report the fabrication of strongly coupled nanohybrid superconducting
junctions using PbS semiconductor nanowires and Pb0.5In0.5 superconducting
electrodes. The maximum supercurrent in the junction reaches up to ~15 \mu A at
0.3 K, which is the highest value ever observed in semiconductor-nanowire-based
superconducting junctions. The observation of microwave-induced constant
voltage steps confirms the existence of genuine Josephson coupling through the
nanowire. Monotonic suppression of the critical current under an external
magnetic field is also in good agreement with the narrow junction model. The
temperature-dependent stochastic distribution of the switching current exhibits
a crossover from phase diffusion to a thermal activation process as the
temperature decreases. These strongly coupled nanohybrid superconducting
junctions would be advantageous to the development of gate-tunable
superconducting quantum information devices.

31
The categories of this paper are: ao-sci
19
The categories of this paper are: eess
37
The categories of this paper are: supr-con
1
The categories of this paper are: cs
13
The categories of this paper are: quant-ph
12
The categories of this paper are: nucl-th
8
The categories of this paper are: hep-ex
26
The categories of this paper are: bayes-an
36
The categories of this paper are: cmp-lg
22
The categories of this paper are: chao-dyn
23
The categories of this paper are: solv-int
25
The categories of this paper are: patt-sol
14
The categories of this paper are: math-ph
17
The categories of this paper are: q-fin
10
The categories of this paper are: q-bio
29
The categories of this paper are: funct-an