Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Vanishing skyrmion Hall effect at the angular momentum compensation
  temperature of a ferrimagnet   Charged particles exhibit the Hall effect in the presence of magnetic fields.
Analogously, ferromagnetic skyrmions with non-zero topological charges and
finite fictitious magnetic fields exhibit the skyrmion Hall effect, which is
detrimental for applications. The skyrmion Hall effect has been theoretically
predicted to vanish for antiferromagnetic skyrmions because the fictitious
magnetic field, proportional to net spin density, is zero. We experimentally
confirm this prediction by observing current-driven transverse elongation of
pinned ferrimagnetic bubbles. Remarkably, the skyrmion Hall effect, estimated
with the angle between the current and bubble elongation directions, vanishes
at the angular momentum compensation temperature where the net spin density
vanishes. This study establishes a direct connection between the fictitious
magnetic field and spin density, offering a pathway towards the realization of
skyrmionic devices.

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The categories of this paper are: cs
29
The categories of this paper are: funct-an
14
The categories of this paper are: math-ph
24
The categories of this paper are: dg-ga
32
The categories of this paper are: atom-ph
7
The categories of this paper are: hep-th
0
The categories of this paper are: hep-ph
10
The categories of this paper are: q-bio
5
The categories of this paper are: gr-qc
3
The categories of this paper are: physics
36
The categories of this paper are: cmp-lg
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The categories of this paper are: bayes-an
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The categories of this paper are: math
30
The categories of this paper are: q-alg
27
The categories of this paper are: comp-gas
6
The categories of this paper are: astro-ph