Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Phase-sensitive order parameter symmetry test experiments utilizing
  Nd2-xCexCuO4-y/Nb zigzag junctions   Phase-sensitive order parameter symmetry test experiments are presented on
the electron-doped high-T_c cuprate Nd2-xCexCuO4-y. These experiments have been
conducted using zigzag-shaped thin film Josephson structures, in which the
Nd2-xCexCuO4-y is connected to the low-T_c superconductor Nb via a Au barrier
layer. For the optimally doped as well as for the overdoped Nd2-xCexCuO4-y a
clear predominant dx2-y2-wave behavior is observed at T=4.2K. Both compounds
were also investigated at T=1.6K, presenting no indications for a change to a
predominant s-wave symmetry with decreasing temperature.

21
The categories of this paper are: adap-org
15
The categories of this paper are: nucl-ex
8
The categories of this paper are: hep-ex
14
The categories of this paper are: math-ph
13
The categories of this paper are: quant-ph
31
The categories of this paper are: ao-sci
18
The categories of this paper are: econ
26
The categories of this paper are: bayes-an
1
The categories of this paper are: cs
5
The categories of this paper are: gr-qc
30
The categories of this paper are: q-alg
11
The categories of this paper are: hep-lat
33
The categories of this paper are: plasm-ph
25
The categories of this paper are: patt-sol
34
The categories of this paper are: chem-ph
3
The categories of this paper are: physics