Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Tunnel Spectroscopy of a Proximity Josephson Junction   We present tunnel spectroscopy experiments on the proximity effect in lateral
superconductor-normal metal-superconductor (SNS) Josephson junctions. Our weak
link is embedded into a superconducting (S) ring allowing phase biasing of the
Josephson junction by an external magnetic field. We explore the temperature
and phase dependence of both the induced mini-gap and the modification of the
density of states in the normal (N) metal. Our results agree with a model based
on the quasiclassical theory in the diffusive limit. The device presents an
advanced version of the superconducting quantum interference proximity
transistor (SQUIPT), now reaching flux sensitivities of 3 nA$/\Phi_0$ where
$\Phi_0$ is the flux quantum.

16
The categories of this paper are: stat
13
The categories of this paper are: quant-ph
19
The categories of this paper are: eess
8
The categories of this paper are: hep-ex
25
The categories of this paper are: patt-sol
7
The categories of this paper are: hep-th
17
The categories of this paper are: q-fin
12
The categories of this paper are: nucl-th
32
The categories of this paper are: atom-ph
26
The categories of this paper are: bayes-an
9
The categories of this paper are: nlin
2
The categories of this paper are: math
27
The categories of this paper are: comp-gas
31
The categories of this paper are: ao-sci
6
The categories of this paper are: astro-ph
24
The categories of this paper are: dg-ga