Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Magnetic Behavior of La7Ru3O18   Rhombohedral La7Ru3O18 can be considered to be nearly geometrically
frustrated due to its close structural similarity to the strongly geometrically
frustrated compound La4.87Ru2O12. The magnetic ordering of La7Ru3O18 was
explored using a combination of dc and ac magnetic susceptibility measurements.
The magnetic phase diagram shows two different ordering regimes. A low field
magnetic phase occurs at applied fields of 0-3T and temperatures below 10K,
while a high field phase is found at fields of 3-5T and temperatures below 9K.

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The categories of this paper are: physics
30
The categories of this paper are: q-alg
26
The categories of this paper are: bayes-an
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The categories of this paper are: mtrl-th
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The categories of this paper are: quant-ph
25
The categories of this paper are: patt-sol
22
The categories of this paper are: chao-dyn
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The categories of this paper are: dg-ga
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The categories of this paper are: plasm-ph
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The categories of this paper are: stat
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The categories of this paper are: comp-gas
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The categories of this paper are: math-ph
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The categories of this paper are: hep-lat
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The categories of this paper are: adap-org
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The categories of this paper are: nucl-ex
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The categories of this paper are: nucl-th