Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Spherical neutron polarimetry study of hysteresis in multiferroic MnWO4   The electric-field dependence of the magnetic structure of multiferroic MnWO4
has been investigated using spherical neutron polarimetry as a function of
temperature. The application of an electric field drives the magnetic structure
to a single chiral domain. The magnitude of the field required to do this is
shown to increase with temperature. The link between the magnetic order and
electric polarization is further demonstrated.

19
The categories of this paper are: eess
35
The categories of this paper are: mtrl-th
32
The categories of this paper are: atom-ph
36
The categories of this paper are: cmp-lg
5
The categories of this paper are: gr-qc
6
The categories of this paper are: astro-ph
34
The categories of this paper are: chem-ph
28
The categories of this paper are: alg-geom
14
The categories of this paper are: math-ph
1
The categories of this paper are: cs
24
The categories of this paper are: dg-ga
15
The categories of this paper are: nucl-ex
21
The categories of this paper are: adap-org
37
The categories of this paper are: supr-con
26
The categories of this paper are: bayes-an
8
The categories of this paper are: hep-ex