Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Large Room-Temperature Pure Topological Hall Effect (THE) in Kagome
  Antiferromagnet Mn$_3$Sn, and Induced Giant Low-Temperature THE with Fe
  Doping   Mn$_3$Sn is a fascinating magnetic topological system, showing topological
characteristics within the Kagome lattice network due to the non-vanishing
Berry phase in the momentum space. In this study, for the first time, we show a
large pure room-temperature topological Hall effect (THE) in the $xy$-plane
(0001), while the anomalous Hall effect (AHE) has been noticed in the
$zx$-plane (01$\bar{1}$0) of Mn$_3$Sn. With Fe doping, we can induce a giant
$xy$-plane THE in addition to AHE at low temperatures, while still preserving
the pure room-temperature THE in Mn$_{2.8}$Fe$_{0.2}$Sn. Moreover, the AHE in
the $zx$-plane has been increased with Fe doping. Our studies indicate that the
topological properties are highly anisotropic in these systems. Most
importantly, the large room-temperature pure THE observed in Mn$_3$Sn is quite
promising for the realization of room-temperature topotronic-based applications

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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: stat
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The categories of this paper are: econ
5
The categories of this paper are: gr-qc
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The categories of this paper are: math-ph
2
The categories of this paper are: math
1
The categories of this paper are: cs
22
The categories of this paper are: chao-dyn
37
The categories of this paper are: supr-con
13
The categories of this paper are: quant-ph
30
The categories of this paper are: q-alg
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The categories of this paper are: bayes-an
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The categories of this paper are: mtrl-th
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The categories of this paper are: atom-ph
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The categories of this paper are: plasm-ph