Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Design of Mott and topological phases on buckled 3d-oxide honeycomb
  lattices   Perovskite bilayers with (111)-orientation combine a honeycomb lattice as a
key feature with the strongly correlated, multiorbital nature of electrons in
transition metal oxides. In a systematic DFT+$U$ study of (111)-oriented
(La$X$O$_3$)$_2$/(LaAlO$_3$)$_4$ superlattices, we establish trends in the
evolution of ground states versus band filling in (111)-oriented
(La$X$O$_3$)$_2$/(LaAlO$_3$)$_4$ superlattices, with $X$ spanning the entire
$3d$ transition metal series. The competition between local quasi-cubic and
global triangular symmetry triggers unanticipated broken symmetry phases, with
mechanisms ranging from Jahn-Teller distortions, to charge-, spin-, and
orbital-ordering. LaMnO$_3$, where spin-orbit coupling opens a sizable gap in
the Dirac-point Fermi surface, emerges as a topological Chern insulator.

34
The categories of this paper are: chem-ph
22
The categories of this paper are: chao-dyn
30
The categories of this paper are: q-alg
1
The categories of this paper are: cs
32
The categories of this paper are: atom-ph
23
The categories of this paper are: solv-int
16
The categories of this paper are: stat
27
The categories of this paper are: comp-gas
0
The categories of this paper are: hep-ph
17
The categories of this paper are: q-fin
6
The categories of this paper are: astro-ph
19
The categories of this paper are: eess
9
The categories of this paper are: nlin
21
The categories of this paper are: adap-org
10
The categories of this paper are: q-bio
15
The categories of this paper are: nucl-ex