Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Interpretation of low-temperature nuclear quadrupole resonance spectra
  in La(1.875)Ba(0.125)CuO(4) in terms of two-dimensional spin superstructure   This paper reanalyzes the low temperature nuclear quadrupole resonance (NQR)
experiments in La(1.875)Ba(0.125)CuO(4) by Hunt et al. [Phys. Rev. B 64, 134565
(2001)] in an attempt to determine the dimensionality of spin modulations in
this and other compounds of the lanthanum family of high temperature cuprate
superconductors. It is concluded that the shape of the NQR spectra obtained by
Hunt et al. favors the two-dimensional pattern of spin modulations known as
"grid" or "checkerboard". The paper also contains the discussion of charge
patterns, which can accompany the above spin modulation.

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The categories of this paper are: gr-qc
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The categories of this paper are: nlin
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The categories of this paper are: hep-lat
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The categories of this paper are: stat
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The categories of this paper are: math
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The categories of this paper are: chem-ph
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The categories of this paper are: hep-th
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The categories of this paper are: mtrl-th
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The categories of this paper are: cmp-lg
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The categories of this paper are: nucl-ex
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The categories of this paper are: plasm-ph
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The categories of this paper are: patt-sol
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The categories of this paper are: bayes-an
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The categories of this paper are: econ
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The categories of this paper are: ao-sci
37
The categories of this paper are: supr-con