Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Orbital-driven two-dome superconducting phases in iron-based
  superconductors   Recent several experiments revealed that novel bipartite
magnetic/superconducting phases widely exist in iron pnictides and
chalcogenides. Nevertheless, the origin of the two-dome superconducting phases
in iron-based compounds still remains unclear. Here we theoretically
investigated the electronic structures, magnetic and superconducting properties
of three representative iron-based systems, i.e. LaFeAsO1-xHx, LaFeAs1-xPxO and
KFe2As2. We found that in addition to the degenerate in-plane anisotropic xz/yz
orbitals, the quasi-degenerate in-plane isotropic orbitals drive these systems
entering into the second parent phase. Moreover, the second superconducting
phase is contributed by the isotropic orbitals rather than the anisotropic ones
in the first superconducting phase, indicating an orbital-selective pairing
state. These results imply an orbital-driven mechanism and shed light on the
understanding of the two-dome magnetic/superconducting phases in iron-based
compounds.

20
The categories of this paper are: acc-phys
13
The categories of this paper are: quant-ph
19
The categories of this paper are: eess
33
The categories of this paper are: plasm-ph
6
The categories of this paper are: astro-ph
1
The categories of this paper are: cs
18
The categories of this paper are: econ
21
The categories of this paper are: adap-org
15
The categories of this paper are: nucl-ex
25
The categories of this paper are: patt-sol
30
The categories of this paper are: q-alg
11
The categories of this paper are: hep-lat
0
The categories of this paper are: hep-ph
27
The categories of this paper are: comp-gas
12
The categories of this paper are: nucl-th
36
The categories of this paper are: cmp-lg