Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Chiral domain walls of Mn$_3$Sn and their memory   Magnetic domain walls are topological solitons whose internal structure is
set by competing energies which sculpt them. In common ferromagnets, domain
walls are known to be of either Bloch or N\'eel types. Little is established in
the case of Mn$_3$Sn, a triangular antiferromagnet with a large
room-temperature anomalous Hall effect, where domain nucleation is triggered by
a well-defined threshold magnetic field. Here, we show that the domain walls of
this system generate an additional contribution to the Hall conductivity tensor
and a transverse magnetization. The former is an electric field lying in the
same plane with the magnetic field and electric current and therefore a planar
Hall effect. We demonstrate that in-plane rotation of spins inside the domain
wall would explain both observations and the clockwise or anticlockwise
chirality of the walls depends on the history of the field orientation and can
be controlled.

14
The categories of this paper are: math-ph
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The categories of this paper are: solv-int
6
The categories of this paper are: astro-ph
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The categories of this paper are: q-fin
34
The categories of this paper are: chem-ph
1
The categories of this paper are: cs
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The categories of this paper are: adap-org
20
The categories of this paper are: acc-phys
16
The categories of this paper are: stat
27
The categories of this paper are: comp-gas
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The categories of this paper are: supr-con
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The categories of this paper are: patt-sol
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The categories of this paper are: cmp-lg
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The categories of this paper are: eess
30
The categories of this paper are: q-alg
15
The categories of this paper are: nucl-ex