Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Soliton Motion in Skyrmion Chains   Using a particle-based model we examine the depinning motion of solitons in
skyrmion chains in quasi-one dimensional (1D) and two-dimensional (2D) systems
containing embedded 1D interfaces. The solitons take the form of a particle or
hole in a commensurate chain of skyrmions. Under an applied drive, just above a
critical depinning threshold the soliton moves with a skyrmion Hall angle of
zero. For higher drives, the entire chain depins, and in a 2D system we observe
that both the solitons and chain move at zero skyrmion Hall angle and then
transition to a finite skyrmion Hall angle as the drive increases. In a 2D
system with a 1D interface that is at an angle to the driving direction, there
can be a reversal of the sign of the skyrmion Hall angle from positive to
negative. Our results suggest that solitons in skyrmion systems could be used
as information carriers in racetrack geometries that would avoid the drawbacks
of finite skyrmion Hall angles. The soliton states become mobile at
significantly lower drives than the depinning transition of the skyrmion chains
themselves.

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The categories of this paper are: dg-ga
16
The categories of this paper are: stat
12
The categories of this paper are: nucl-th
30
The categories of this paper are: q-alg
1
The categories of this paper are: cs
8
The categories of this paper are: hep-ex
25
The categories of this paper are: patt-sol
6
The categories of this paper are: astro-ph
34
The categories of this paper are: chem-ph
11
The categories of this paper are: hep-lat
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The categories of this paper are: acc-phys
3
The categories of this paper are: physics
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The categories of this paper are: q-fin
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The categories of this paper are: funct-an
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The categories of this paper are: plasm-ph
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The categories of this paper are: mtrl-th