Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Phase diagram and topological phases in the triangular lattice
  Kitaev-Hubbard model   We study the half-filled Hubbard model on the triangular lattice with
spin-dependent Kitaev-like hopping. Using the variational cluster approach, we
identify five phases: a metallic phase, a non-coplanar chiral magnetic order, a
$120^\circ$ magnetic order, a nonmagnetic insulator (NMI), and an interacting
Chern insulator (CI) with a nonzero Chern number. The transition from CI to NMI
is characterized by the change of the charge gap from an indirect band gap to a
direct Mott gap. Based on the slave-rotor mean-field theory, the NMI phase is
further suggested to be a gapless Mott insulator with a spinon Fermi surface or
a fractionalized CI with nontrivial spinon topology, depending on the strength
of Kitaev-like hopping. Our work highlights the rising field that interesting
phases emerge from the interplay of band topology and Mott physics.

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The categories of this paper are: astro-ph
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The categories of this paper are: patt-sol
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The categories of this paper are: eess
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The categories of this paper are: mtrl-th
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The categories of this paper are: q-alg
0
The categories of this paper are: hep-ph
32
The categories of this paper are: atom-ph
24
The categories of this paper are: dg-ga
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The categories of this paper are: hep-th
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The categories of this paper are: chao-dyn
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The categories of this paper are: nucl-ex
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The categories of this paper are: hep-ex
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The categories of this paper are: math
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The categories of this paper are: hep-lat
31
The categories of this paper are: ao-sci
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The categories of this paper are: nucl-th