Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: High-order Dy multipole motifs observed in DyB2C2 with resonant soft
  x-ray Bragg diffraction   Resonant soft x-ray Bragg diffraction at the Dy M4,5 edges has been exploited
to study Dy multipole motifs in DyB2C2. Our results are explained introducing
the intra-atomic quadrupolar interaction between the core 3d and valence 4f
shell. This allows us to determine for the first time higher order multipole
moments of dysprosium $4f$ electrons and to draw their precise charge density.
The Dy hexadecapole and hexacontatetrapole moment have been estimated at -20%
and +30% of the quadrupolar moment, respectively. No evidence for the lock-in
of the orbitals at T_N has been observed, in contrast to earlier suggestions.
The multipolar interaction and the structural transition cooperate along c but
they compete in the basal plane explaining the canted structure along [110].

12
The categories of this paper are: nucl-th
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The categories of this paper are: astro-ph
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The categories of this paper are: math-ph
29
The categories of this paper are: funct-an
5
The categories of this paper are: gr-qc
23
The categories of this paper are: solv-int
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The categories of this paper are: q-fin
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The categories of this paper are: adap-org
31
The categories of this paper are: ao-sci
3
The categories of this paper are: physics
33
The categories of this paper are: plasm-ph
10
The categories of this paper are: q-bio
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The categories of this paper are: eess
26
The categories of this paper are: bayes-an
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The categories of this paper are: quant-ph
30
The categories of this paper are: q-alg