Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Anisotropic skyrmion diffusion controlled by field-induced symmetry
  breaking   Diffusion of particles has wide repercussions ranging from particle-based
soft matter systems to solid state systems with particular electronic
properties. Recently, in the field of magnetism, diffusion of magnetic
skyrmions, topologically stabilized quasi-particles, has been demonstrated.
Here we show that by applying a magnetic in-plane field and therefore breaking
the symmetry of the system, the skyrmion diffusion becomes anisotropic with
faster diffusion parallel to the field axis and slower diffusion perpendicular
to it. We furthermore show that the absolute value of the applied field
controls the absolute values of the diffusion coefficients so that one can
thereby uniquely tune both the orientation of the diffusion and its strength.
Based on the stochastic Thiele equation, we can explain the observed
anisotropic diffusion as a result of the elliptical deformation of the
skyrmions by the application of the in-plane field.

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The categories of this paper are: astro-ph
30
The categories of this paper are: q-alg
25
The categories of this paper are: patt-sol
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The categories of this paper are: hep-ex
28
The categories of this paper are: alg-geom
34
The categories of this paper are: chem-ph
31
The categories of this paper are: ao-sci
32
The categories of this paper are: atom-ph
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The categories of this paper are: physics
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The categories of this paper are: gr-qc
15
The categories of this paper are: nucl-ex
37
The categories of this paper are: supr-con
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The categories of this paper are: nlin
16
The categories of this paper are: stat
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The categories of this paper are: hep-ph
21
The categories of this paper are: adap-org