Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Interconversion of multiferroic domains and domain walls   Materials with long-range order like ferromagnetism or ferroelectricity
exhibit uniform, yet differently oriented three-dimensional regions called
domains that are separated by two-dimensional topological defects termed domain
walls\cite{Tagantsev2010,AlexHubert1998}. A change of the ordered state across
a domain wall can lead to local non-bulk properties such as enhanced
conductance or the promotion of unusual
phases\cite{Seidel2009,Meier2012,Farokhipoor2014}. Although highly desirable,
controlled transfer of these exciting properties between the bulk and the walls
is usually not possible. Here we demonstrate this crossover from three- to
two-dimensions for confining multiferroic Dy$_{0.7}$Tb$_{0.3}$FeO$_3$ domains
into multiferroic domain walls at a specified location within a
non-multiferroic environment. This process is fully reversible; an applied
magnetic or electric field controls the transformation. Aside from the aspect
of magnetoelectric functionality, such interconversion can be key to tailoring
elusive domain architectures such as in antiferromagnets.

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The categories of this paper are: atom-ph
8
The categories of this paper are: hep-ex
19
The categories of this paper are: eess
2
The categories of this paper are: math
36
The categories of this paper are: cmp-lg
13
The categories of this paper are: quant-ph
1
The categories of this paper are: cs
37
The categories of this paper are: supr-con
27
The categories of this paper are: comp-gas
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The categories of this paper are: ao-sci
14
The categories of this paper are: math-ph
35
The categories of this paper are: mtrl-th
17
The categories of this paper are: q-fin
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The categories of this paper are: funct-an
9
The categories of this paper are: nlin
25
The categories of this paper are: patt-sol