Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Clamping of ferroelectric and ferromagnetic domain walls in conical
  spiral magnets   We study the structure of domain walls in multiferroic magnets with the
conical spiral ordering. We formulate a simple spin model which has a conical
spiral ground state in absence of magnetic anisotropies. We find a transition
from the regime where ferromagnetic and ferroelectric domain walls are clamped
to the regime where they are decoupled and derive a continuum model describing
rotation of the spiral plane at the domain wall. The importance of these
results for the switching phenomena observed in CoCr2O4 is discussed.

18
The categories of this paper are: econ
7
The categories of this paper are: hep-th
36
The categories of this paper are: cmp-lg
14
The categories of this paper are: math-ph
11
The categories of this paper are: hep-lat
2
The categories of this paper are: math
8
The categories of this paper are: hep-ex
12
The categories of this paper are: nucl-th
5
The categories of this paper are: gr-qc
29
The categories of this paper are: funct-an
22
The categories of this paper are: chao-dyn
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The categories of this paper are: q-fin
20
The categories of this paper are: acc-phys
6
The categories of this paper are: astro-ph
23
The categories of this paper are: solv-int
35
The categories of this paper are: mtrl-th