Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Growth of large single crystals of Rare Earth Hexaborides   Single crystal growth of several rare earth hexaborides has been carried out
by the floating zone technique. A high power Xenon arc lamp image furnace was
used for the crystal growth. Large high quality crystals of LaB$_{6}$,
CeB$_{6}$, PrB$_{6}$ and NdB$_{6}$, about 1 cc in volume have been obtained.
Crystals of all these compounds have also been grown using enriched $^{11}$B
isotope for use in neutron scattering experiments.

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The categories of this paper are: quant-ph
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The categories of this paper are: alg-geom
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
12
The categories of this paper are: nucl-th
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The categories of this paper are: hep-ex
6
The categories of this paper are: astro-ph
35
The categories of this paper are: mtrl-th
31
The categories of this paper are: ao-sci
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The categories of this paper are: bayes-an
7
The categories of this paper are: hep-th
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The categories of this paper are: econ
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The categories of this paper are: eess
0
The categories of this paper are: hep-ph
14
The categories of this paper are: math-ph