Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Phase diagram of a three-dimensional antiferromagnet with random
  magnetic anisotropy   Three-dimensional (3D) antiferromagnets with random magnetic anisotropy (RMA)
experimentally studied to date do not have random single-ion anisotropies, but
rather have competing two-dimensional and three-dimensional exchange
interactions which can obscure the authentic effects of RMA. The magnetic phase
diagram Fe$_{x}$Ni$_{1-x}$F$_{2}$ epitaxial thin films with true random
single-ion anisotropy was deduced from magnetometry and neutron scattering
measurements and analyzed using mean field theory. Regions with uniaxial,
oblique and easy plane anisotropies were identified. A RMA-induced glass region
was discovered where a Griffiths-like breakdown of long-range spin order
occurs.

7
The categories of this paper are: hep-th
37
The categories of this paper are: supr-con
10
The categories of this paper are: q-bio
1
The categories of this paper are: cs
30
The categories of this paper are: q-alg
36
The categories of this paper are: cmp-lg
22
The categories of this paper are: chao-dyn
13
The categories of this paper are: quant-ph
25
The categories of this paper are: patt-sol
11
The categories of this paper are: hep-lat
32
The categories of this paper are: atom-ph
28
The categories of this paper are: alg-geom
34
The categories of this paper are: chem-ph
17
The categories of this paper are: q-fin
3
The categories of this paper are: physics
33
The categories of this paper are: plasm-ph