Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: La 7/8 Sr 1/8 MnO3: long period orbital order with hole stripes   The electronic structure of La 7/8 Sr 1/8 MnO 3 was studied by using the
rotation-invariant LSDA (Local Spin Density Approximation)+U formalism. We
found the specific kind of charge and orbital order for ferromagnetic
insulating solution in 2a*2b*4c supercell, where a, b, and c denote cubic
perovskite axes. The holes are distributed over 3-line stripes in every second
ac plane along a axis. The stabilization mechanism of the hole stripe is
attributed to the strong p-d hybridization.

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The categories of this paper are: comp-gas
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The categories of this paper are: q-bio
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The categories of this paper are: dg-ga
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The categories of this paper are: chem-ph
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The categories of this paper are: q-alg
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The categories of this paper are: acc-phys
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The categories of this paper are: hep-ex
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The categories of this paper are: funct-an
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The categories of this paper are: math-ph
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The categories of this paper are: eess
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The categories of this paper are: bayes-an
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The categories of this paper are: cs
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The categories of this paper are: chao-dyn
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The categories of this paper are: patt-sol
3
The categories of this paper are: physics
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The categories of this paper are: alg-geom