Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Magneto-optical properties of Europium hexaboride   Full potential spin-polarized self-consistent electronic structure
calculation s have been performed on LaB$_{6}$, EuB$_{6}$ and YbB$_{6}$ using
Linear Muffin- Tin Orbital Method. The electronic structure of EuB$_{6}$ shows
a small overlap near the Fermi level. This is in disagreement with the recent
ARPES study. The r eflectivity spectrum shows a plasma resonance at about 0.3
eV in EuB$_{6}$. Abso rption starts at about 1.5 eV and it is due to 4$f$ to
5$d$ transition. Both the se features are reflected in the magneto-optical Kerr
spectrum. At 0.3 eV, there is a rotation of +8$^{0}$ to -10$^{0}$ and at 1.5
eV, a rotation of about 0.5$^ {0}$ occurs. The reasonable agreement with MOKE
experiment implies that the incl usion of Drude correction is absolutely
essential for the treatment of EuB$_{6}$ .

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The categories of this paper are: solv-int
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The categories of this paper are: chao-dyn
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The categories of this paper are: cs
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The categories of this paper are: chem-ph
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The categories of this paper are: quant-ph
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The categories of this paper are: acc-phys
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The categories of this paper are: funct-an
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The categories of this paper are: bayes-an
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The categories of this paper are: eess
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The categories of this paper are: stat
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The categories of this paper are: econ
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The categories of this paper are: astro-ph
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The categories of this paper are: adap-org
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The categories of this paper are: gr-qc
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The categories of this paper are: math-ph
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The categories of this paper are: plasm-ph