Instruct: Identify the main and secondary category of Arxiv papers based on the titles
Query: Odd-even layer-number effect and layer-dependent magnetic phase diagrams
  in MnBi2Te4
33
The categories of this paper are: plasm-ph
22
The categories of this paper are: chao-dyn
16
The categories of this paper are: stat
0
The categories of this paper are: hep-ph
27
The categories of this paper are: comp-gas
13
The categories of this paper are: quant-ph
7
The categories of this paper are: hep-th
25
The categories of this paper are: patt-sol
37
The categories of this paper are: supr-con
12
The categories of this paper are: nucl-th
6
The categories of this paper are: astro-ph
35
The categories of this paper are: mtrl-th
17
The categories of this paper are: q-fin
1
The categories of this paper are: cs
2
The categories of this paper are: math
20
The categories of this paper are: acc-phys