Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Localized-itinerant dichotomy and unconventional magnetism in
  SrRu$_2$O$_6$   Electron correlations tend to generate local magnetic moments that usually
order if the lattices are not too frustrated. The hexagonal compound
SrRu$_2$O$_6$ has a relatively high Neel temperature but small local moments,
which seem to be at odds with the nominal valence of Ru$^{5+}$ in the
$t_{2g}^3$ configuration. Here, we investigate the electronic property of
SrRu$_2$O$_6$ using density functional theory (DFT) combined with
dynamical-mean-field theory (DMFT). We find that the strong hybridization
between Ru $d$ and O $p$ states results in a Ru valence that is closer to $+4$,
leading to the small ordered moment $\sim1.2\mu_B$. While this is consistent
with a DFT prediction, correlation effects are found to play a significant
role. The local moment per Ru site remains finite $\sim2.3\mu_B$ in the whole
temperature range investigated. Due to the lower symmetry, the $t_{2g}$
manifold is split and the quasiparticle weight is renormalized significantly in
the $a_{1g}$ state, while the renormalization in $e_g'$ states is about a
factor of 2--3 weaker. Our theoretical Neel temperature $\sim700$~K is in
reasonable agreement with experimental observations. SrRu$_2$O$_6$ is a unique
system in which localized and itinerant electrons coexist with the proximity to
an orbitally-selective Mott transition within the $t_{2g}$ sector.

19
The categories of this paper are: eess
6
The categories of this paper are: astro-ph
24
The categories of this paper are: dg-ga
16
The categories of this paper are: stat
11
The categories of this paper are: hep-lat
35
The categories of this paper are: mtrl-th
30
The categories of this paper are: q-alg
13
The categories of this paper are: quant-ph
28
The categories of this paper are: alg-geom
9
The categories of this paper are: nlin
34
The categories of this paper are: chem-ph
2
The categories of this paper are: math
18
The categories of this paper are: econ
7
The categories of this paper are: hep-th
12
The categories of this paper are: nucl-th
33
The categories of this paper are: plasm-ph