Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Dynamical Behavior of Spins in the Rare-Earth Kagom\'{e}
  Pr$_3$Ga$_5$SiO$_{14}$   We report on the use of $^{69,71}$Ga nuclear magnetic resonance to probe spin
dynamics in the rare-earth kagom\'{e} system Pr$_3$Ga$_5$SiO$_{14}$. We find
that the spin-lattice relaxation rate $^{69}1/T_1$ exhibits a maximum around 30
K, below which the Pr$^{3+}$ spin correlation time $\tau$ shows novel
field-dependent behavior consistent with a field-dependent gap in the
excitation spectrum. The spin-spin relaxation rate $^{69}1/T_{2}$ exhibits a
peak at a lower temperature (10 K) below which field-dependent power-law
behavior close to $T^{2}$ is observed. These results point to field-induced
formation of nanoscale magnetic clusters consistent with recent neutron
scattering measurements.

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The categories of this paper are: solv-int
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The categories of this paper are: alg-geom
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The categories of this paper are: q-alg
1
The categories of this paper are: cs
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The categories of this paper are: q-fin
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The categories of this paper are: nucl-th
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The categories of this paper are: hep-ex
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The categories of this paper are: atom-ph
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The categories of this paper are: stat
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The categories of this paper are: patt-sol
2
The categories of this paper are: math
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The categories of this paper are: cmp-lg
3
The categories of this paper are: physics
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The categories of this paper are: chao-dyn
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The categories of this paper are: math-ph
0
The categories of this paper are: hep-ph