Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Magnetization in short-period mesoscopic electron systems   We calculate the magnetization of the two-dimensional electron gas in a
short-period lateral superlattice, with the Coulomb interaction included in
Hartree and Hartree-Fock approximations. We compare the results for a finite,
mesoscopic system modulated by a periodic potential, with the results for the
infinite periodic system. In addition to the expected strong exchange effects,
the size of the system, the type and the strength of the lateral modulation
leave their fingerprints on the magnetization.

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The categories of this paper are: plasm-ph
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The categories of this paper are: cs
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The categories of this paper are: q-bio
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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: nlin
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The categories of this paper are: q-fin
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The categories of this paper are: hep-th
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The categories of this paper are: q-alg
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The categories of this paper are: dg-ga
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The categories of this paper are: gr-qc
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The categories of this paper are: chem-ph
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The categories of this paper are: astro-ph
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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: cmp-lg