Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Possible High-Tc Superconductivity in LiMgN: A MgB2-like Material   The search for superconductivity in materials iso-structural and iso-valent
with magnesium diboride, MgB2, has not yielded any results close enough to the
39K Tc of MgB2. Lithium magnesium nitride, LiMgN, resembles MgB2 in that they
both have the same averages of electronegativity, valence electron count and
atomic number. Their formula weights are very close too. Using our recently
published chemical symmetry rules for estimating superconductivity and Tcs of
materials, we predict that LiMgN, a semiconductor at room temperature, with the
same material specific characterization dataset (MSCD) as MgB2, should be a
superconductor, in the ordered {\alpha}-phase or the orthorhombic phase, when
cooled to 39K.

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The categories of this paper are: funct-an
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The categories of this paper are: astro-ph
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The categories of this paper are: ao-sci
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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: math
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The categories of this paper are: patt-sol
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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: chem-ph
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The categories of this paper are: nucl-ex
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The categories of this paper are: eess
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The categories of this paper are: alg-geom
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The categories of this paper are: math-ph
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The categories of this paper are: solv-int
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The categories of this paper are: cmp-lg