Instruct: Identify the main and secondary category of Arxiv papers based on the titles
Query: Structural and magnetic properties of GaMnAs layers with high Mn content
  grown by Migration Enhanced Epitaxy on GaAs(100) substrates
17
The categories of this paper are: q-fin
34
The categories of this paper are: chem-ph
13
The categories of this paper are: quant-ph
32
The categories of this paper are: atom-ph
22
The categories of this paper are: chao-dyn
6
The categories of this paper are: astro-ph
16
The categories of this paper are: stat
5
The categories of this paper are: gr-qc
19
The categories of this paper are: eess
24
The categories of this paper are: dg-ga
0
The categories of this paper are: hep-ph
20
The categories of this paper are: acc-phys
2
The categories of this paper are: math
18
The categories of this paper are: econ
37
The categories of this paper are: supr-con
1
The categories of this paper are: cs