Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Determination of the exchange anisotropy in perovskite antiferromagnets
  using powder inelastic neutron scattering   A procedure is outlined for the determination of magnetic exchange constants
in anisotropic perovskite anitferromagnets using powder inelastic neutron
scattering. Spin wave densities-of-states are measured using time-of-flight
inelastic neutron scattering for LaMnO$_{3}$ ($A$-type antiferromagnet),
LaVO$_{3}$ ($C$-type), and LaFeO$_{3}$ ($G$-type) and compared to Heisenberg
model calculations. The anisotropy of in-plane ($J_{ab}$) and out-of-plane
($J_{c}$) exchange constants can be obtained from the data. The procedure
quickly determines the magnetic exchange interactions without the need for
single-crystal dispersion measurements and allows for rapid systematic studies
of the evolution of magnetism in perovskite systems.

28
The categories of this paper are: alg-geom
27
The categories of this paper are: comp-gas
26
The categories of this paper are: bayes-an
17
The categories of this paper are: q-fin
5
The categories of this paper are: gr-qc
8
The categories of this paper are: hep-ex
23
The categories of this paper are: solv-int
16
The categories of this paper are: stat
30
The categories of this paper are: q-alg
7
The categories of this paper are: hep-th
24
The categories of this paper are: dg-ga
20
The categories of this paper are: acc-phys
36
The categories of this paper are: cmp-lg
0
The categories of this paper are: hep-ph
9
The categories of this paper are: nlin
6
The categories of this paper are: astro-ph