Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Magnon Landau Levels and Spin Responses in Antiferromagnets   We study gauge fields produced by gradients of the Dzyaloshinskii-Moriya
interaction and propose a model of AFM topological insulator of magnons. In the
long wavelength limit, the Landau levels induced by the inhomogeneous
Dzyaloshinskii-Moriya interaction exhibit relativistic physics described by the
Klein-Gordon equation. The spin Nernst response due to the formation of
magnonic Landau levels is compared to similar topological responses in skyrmion
and vortex-antivortex crystal phases of AFM insulators. Our studies show that
AFM insulators exhibit rich physics associated with topological magnon
excitations.

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The categories of this paper are: math-ph
37
The categories of this paper are: supr-con
27
The categories of this paper are: comp-gas
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The categories of this paper are: acc-phys
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The categories of this paper are: patt-sol
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The categories of this paper are: nucl-th
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The categories of this paper are: q-bio
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The categories of this paper are: adap-org
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The categories of this paper are: alg-geom
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The categories of this paper are: math
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The categories of this paper are: eess
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The categories of this paper are: chao-dyn
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The categories of this paper are: mtrl-th
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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: nlin