Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Inelastic neutron scattering and frequency domain magnetic resonance
  studies of S=4 and S=12 Mn$_6$ single-molecule magnets   We investigate the magnetic properties of three Mn$_6$ single molecule
magnets by means of inelastic neutron scattering and frequency domain magnetic
resonance spectroscopy. The experimental data reveal that small structural
distortions of the molecular geometry produce a significant effect on the
energy level diagram and therefore on the magnetic properties of the molecule.
We show that the giant spin model completely fails to describe the spin level
structure of the ground spin multiplets. We analyze theoretically the spin
Hamiltonian for the low spin Mn$_6$ molecule (S=4) and we show that the excited
$S$ multiplets play a key role in determining the effective energy barrier for
the magnetization reversal, in analogy to what was previously found for the two
high spin Mn6 (S=12) molecules [S. Carretta et al., Phys. Rev. Lett. 100,
157203 (2008)].

2
The categories of this paper are: math
31
The categories of this paper are: ao-sci
18
The categories of this paper are: econ
5
The categories of this paper are: gr-qc
24
The categories of this paper are: dg-ga
27
The categories of this paper are: comp-gas
28
The categories of this paper are: alg-geom
25
The categories of this paper are: patt-sol
6
The categories of this paper are: astro-ph
14
The categories of this paper are: math-ph
21
The categories of this paper are: adap-org
22
The categories of this paper are: chao-dyn
10
The categories of this paper are: q-bio
30
The categories of this paper are: q-alg
15
The categories of this paper are: nucl-ex
13
The categories of this paper are: quant-ph