Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A reversible conversion between a skyrmion and a domain-wall pair in
  junction geometry   A skyrmion is a topological texture in the continuum field theory. Recent
experimental observation of skyrmions in chiral magnet evokes a flourish of its
extensive study. Skyrmion is expected to be a key component of the next
generation spintronics device called skyrmionics. On the other hand, there is a
well established memory device encoded by a sequence of domain walls. A
skyrmion carries a topological number, whereas a domain wall does not.
Nevertheless, we show a conversion is possible between a skyrmion and a
domain-wall pair by connecting wide and narrow nanowires, enabling the
information transmission between skyrmion device and domain-wall device. Our
results will be the basis of a hybrid device made of skyrmions and domain
walls, where the encoded information in domain walls is converted into
skyrmions, and then read out by converting the skyrmions back to domain walls
after a functional control of the skyrmions.

12
The categories of this paper are: nucl-th
20
The categories of this paper are: acc-phys
14
The categories of this paper are: math-ph
8
The categories of this paper are: hep-ex
9
The categories of this paper are: nlin
24
The categories of this paper are: dg-ga
5
The categories of this paper are: gr-qc
17
The categories of this paper are: q-fin
13
The categories of this paper are: quant-ph
15
The categories of this paper are: nucl-ex
27
The categories of this paper are: comp-gas
7
The categories of this paper are: hep-th
1
The categories of this paper are: cs
22
The categories of this paper are: chao-dyn
2
The categories of this paper are: math
10
The categories of this paper are: q-bio