Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Nanoscale textured superconductivity in Ru-substituted BaFe2As2 : a
  challenge to a universal phase diagram for the pnictides   75As NMR experiments were performed in Ba(Fe1-xRux)2As2 for x=0 to 80%.
Magnetic fractions and NMR lineshapes demonstrate that Ru substitution destroys
the antiferromagnetic (AF) order inhomogeneously with a magnetic moment
distributed from 0.9 to 0 uB. Superconductivity emerges at intermediate Ru
doping and coexists with AF order only in the regions where moments are smaller
than ~0.3uB, resulting in an original nanoscale texture. This situation
contrasts with that of Co substitution, challenging the apparent universality
of the phase diagram in Fe-based superconductors.

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The categories of this paper are: gr-qc
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The categories of this paper are: chao-dyn
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The categories of this paper are: patt-sol
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The categories of this paper are: hep-th
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The categories of this paper are: eess
23
The categories of this paper are: solv-int
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The categories of this paper are: supr-con
26
The categories of this paper are: bayes-an
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The categories of this paper are: econ
36
The categories of this paper are: cmp-lg
32
The categories of this paper are: atom-ph
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The categories of this paper are: adap-org
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The categories of this paper are: dg-ga
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The categories of this paper are: alg-geom
35
The categories of this paper are: mtrl-th
12
The categories of this paper are: nucl-th