Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Understanding the Curious Magnetic State of Sr$_{3}$OsO$_{6}$   Motivated by the recent report on high T$_c$ ferromagnetic insulating state
of single transition metal containing double perovskite compound, Sr$_3$OsO$_6$
(Wakabayashi et. al., Nature Commun {\bf 10} 535, 2019), we study this curious
behavior by employing first-principles calculations in conjunction with exact
diagonalization of full $t_{2g}$ multiplet problem of two Os sites. Our
analysis highlights the fact that stabilization of Sr$_3$OsO$_6$ in the cubic
phase in epitaxially grown thin film is the key to both ferromagnetic
correlation and high temperature scale associated to it. This also provides a
natural explanation for the sister compound, Ca$_3$OsO$_6$ to exhibit low T$_N$
antiferromagnetism in its monoclinic structure. Further the insulating property
is found to be driven by opening of Mott gap in the half filled spin-orbit
coupled $j=3/2$ manifold of $d^{2}$ Os. We point out that Sr$_2$CaOsO$_6$ which
naturally forms in the cubic phase would be worthwhile to explore as a future
candidate to exhibit high T$_c$ ferromagnetic insulating state in bulk form.

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The categories of this paper are: nucl-th
6
The categories of this paper are: astro-ph
15
The categories of this paper are: nucl-ex
37
The categories of this paper are: supr-con
2
The categories of this paper are: math
31
The categories of this paper are: ao-sci
3
The categories of this paper are: physics
21
The categories of this paper are: adap-org
27
The categories of this paper are: comp-gas
30
The categories of this paper are: q-alg
1
The categories of this paper are: cs
29
The categories of this paper are: funct-an
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The categories of this paper are: plasm-ph
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The categories of this paper are: stat
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The categories of this paper are: chao-dyn
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The categories of this paper are: dg-ga