Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Hydrostatic and chemical pressure tuning of CeFeAs_1-xP_xO single
  crystals   We carried out a combined P-substitution and hydrostatic pressure study on
CeFeAs_1-xP_xO single crystals in order to investigate the peculiar
relationship of the local moment magnetism of Ce, the ordering of itinerant Fe
moments, and their connection with the occurrence of superconductivity. Our
results evidence a close relationship between the weakening of Fe magnetism and
the change from antiferromagnetic to ferromagnetic ordering of Ce moments at
p*=1.95 GPa in CeFeAs_0.78P_0.22O. The absence of superconductivity in
CeFeAs_0.78P_0.22O and the presence of a narrow and strongly pressure sensitive
superconducting phase in CeFeAs_0.70P_0.30O and CeFeAs_0.65P_0.35O indicate the
detrimental effect of the Ce magnetism on superconductivity in P-substituted
CeFeAsO.

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The categories of this paper are: adap-org
11
The categories of this paper are: hep-lat
7
The categories of this paper are: hep-th
14
The categories of this paper are: math-ph
10
The categories of this paper are: q-bio
16
The categories of this paper are: stat
2
The categories of this paper are: math
18
The categories of this paper are: econ
28
The categories of this paper are: alg-geom
9
The categories of this paper are: nlin
31
The categories of this paper are: ao-sci
24
The categories of this paper are: dg-ga
30
The categories of this paper are: q-alg
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The categories of this paper are: funct-an
8
The categories of this paper are: hep-ex
5
The categories of this paper are: gr-qc