Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Nematicity, magnetism and superconductivity in FeSe under pressure:
  Unified explanation based on the self-consistent vertex correction theory   To understand the rich electronic phase diagram in FeSe under pressure that
vividly demonstrates the strong interplay between the nematicity, magnetism and
superconductivity, we analyze the electronic states by including the
higher-order many-body effects called the vertex correction (VC). We predict
the pressure-induced emergence of xy-orbital hole-pocket based on the
first-principles analysis. Due to this pressure-induced Lifshitz transition,
the spin fluctuations on the xy orbital are enhanced, whereas those on xz,yz
orbitals are gradually reduced. For this reason, nonmagnetic orbital order $O =
n_{xz} - n_{yz}$, which is driven by the spin fluctuations on xz,yz orbitals
through the intra-orbital VCs, is suppressed, and it is replaced with the
magnetism of xy-orbital d-electrons. The nodal s-wave state at ambient pressure
($O > 0$) and the enhancement of Tc under pressure are driven by the
cooperation between the spin and orbital fluctuations.

18
The categories of this paper are: econ
21
The categories of this paper are: adap-org
5
The categories of this paper are: gr-qc
29
The categories of this paper are: funct-an
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The categories of this paper are: dg-ga
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The categories of this paper are: solv-int
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The categories of this paper are: eess
22
The categories of this paper are: chao-dyn
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The categories of this paper are: patt-sol
35
The categories of this paper are: mtrl-th
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The categories of this paper are: plasm-ph
36
The categories of this paper are: cmp-lg
2
The categories of this paper are: math
1
The categories of this paper are: cs
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The categories of this paper are: q-bio
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The categories of this paper are: bayes-an