Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Monte Carlo determination of the phase diagram of the double-exchange
  model   We study the phase diagram of the double exchange model, with
antiferromagnetic interactions, in a cubic lattice both at zero and at finite
temperature. There is a rich variety of magnetic phases, combined with regions
where phase separation takes place. We identify phases, intrinsic to the cubic
lattice, which are stable for realistic values of the interactions and dopings.
Some of these phases break chiral symmetry, leading to unusual features.

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The categories of this paper are: math-ph
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The categories of this paper are: math
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The categories of this paper are: stat
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The categories of this paper are: dg-ga
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The categories of this paper are: chao-dyn
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The categories of this paper are: astro-ph
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The categories of this paper are: funct-an
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The categories of this paper are: gr-qc
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The categories of this paper are: comp-gas
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The categories of this paper are: acc-phys
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The categories of this paper are: patt-sol
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The categories of this paper are: eess
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The categories of this paper are: nlin
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The categories of this paper are: alg-geom
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The categories of this paper are: quant-ph
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The categories of this paper are: q-fin