Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Correlations, spin dynamics, defects: the highly-frustrated Kagom\'{e}
  bilayer   The SrCr$\_{9p}$Ga$\_{12-9p}$O$\_{19}$ and
Ba$\_{2}$Sn$\_{2}$ZnGa$\_{10-7p}$Cr$\_{7p}$O$\_{22}$ compounds are two
highly-frustrated magnets possessing a quasi-two-dimensional Kagom\'{e} bilayer
of spin 3/2 chromium ions with antiferromagnetic interactions. Their magnetic
susceptibility was measured by local Nuclear Magnetic Resonance and non-local
(SQUID) techniques, and their low-temperature spin dynamics by Muon Spin
Resonance. Consistent with the theoretical picture drawn for geometrically
frustrated systems, the Kagom\'{e} bilayer is shown here to exhibit: (i) short
range spin-spin correlations down to a temperature much lower than the
Curie-Weiss temperature, no conventional long-range transition occurring; (ii)
a Curie contribution to the susceptibility from paramagnetic defects generated
by spin vacancies; (iii) low-temperature spin fluctuations, at least down to 30
mK, which are a trademark of a dynamical ground state. These properties point
to a spin-liquid ground state, possibly built on Resonating Valence Bonds with
unconfined spinons as the magnetic excitations.

15
The categories of this paper are: nucl-ex
32
The categories of this paper are: atom-ph
10
The categories of this paper are: q-bio
21
The categories of this paper are: adap-org
11
The categories of this paper are: hep-lat
33
The categories of this paper are: plasm-ph
19
The categories of this paper are: eess
7
The categories of this paper are: hep-th
24
The categories of this paper are: dg-ga
25
The categories of this paper are: patt-sol
27
The categories of this paper are: comp-gas
1
The categories of this paper are: cs
14
The categories of this paper are: math-ph
28
The categories of this paper are: alg-geom
9
The categories of this paper are: nlin
0
The categories of this paper are: hep-ph