Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Electric field control of chiral magnetic domains in the
  high-temperature multiferroic CuO   We have studied the high temperature multiferroic cupric oxide using
polarized neutron diffraction as a function of temperature and applied electric
field. We find that the chiral domain population can be varied using an
external electric field applied along the b axis. Using representation analysis
we derive the incommensurate magnetic structure in the multiferroic phase. The
origin of the magnetoelectric coupling is consistent with models based on the
inverse Dzyaloshinskii-Moriya interaction, but is different from the simple
cycloidal mechanism.

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The categories of this paper are: funct-an
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The categories of this paper are: chem-ph
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The categories of this paper are: atom-ph
19
The categories of this paper are: eess
13
The categories of this paper are: quant-ph
17
The categories of this paper are: q-fin
15
The categories of this paper are: nucl-ex
35
The categories of this paper are: mtrl-th
6
The categories of this paper are: astro-ph
9
The categories of this paper are: nlin
0
The categories of this paper are: hep-ph
20
The categories of this paper are: acc-phys
25
The categories of this paper are: patt-sol
5
The categories of this paper are: gr-qc
37
The categories of this paper are: supr-con
2
The categories of this paper are: math