Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Discovery of parity-violating Majorana fermions in a chiral
  superconductor Sr2RuO4   We found parity-violating Majorana fermions in a chiral superconductor
Sr2RuO4. The current-voltage curves show an anomalous behavior: The induced
voltage is an even function of the bias current. The magnetic field dependent
results suggest the excitation of the Majorana fermions along the closed chiral
edge current of the single domain under bias current. We also discuss the
relationship between a change of the chirality and spontaneous magnetization of
the single domain Sr2RuO4.

29
The categories of this paper are: funct-an
1
The categories of this paper are: cs
35
The categories of this paper are: mtrl-th
10
The categories of this paper are: q-bio
20
The categories of this paper are: acc-phys
25
The categories of this paper are: patt-sol
11
The categories of this paper are: hep-lat
14
The categories of this paper are: math-ph
5
The categories of this paper are: gr-qc
31
The categories of this paper are: ao-sci
23
The categories of this paper are: solv-int
24
The categories of this paper are: dg-ga
34
The categories of this paper are: chem-ph
16
The categories of this paper are: stat
18
The categories of this paper are: econ
15
The categories of this paper are: nucl-ex