Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Effect of Order-Parameter Suppression on Scattering by Isolated
  Impurities in Asymmetric Bands   The single-impurity problem in d-wave superconductors with asymmetric bands
is discussed. The effect of local order parameter suppression near the impurity
is to shift the quasiparticle resonance. Contrary to previous work [A. Shnirman
et al., Phys. Rev. B 60, 7517 (1999)] we find that the direction of the shift
is not universally towards the strong scattering limit.

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The categories of this paper are: econ
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The categories of this paper are: hep-lat
31
The categories of this paper are: ao-sci
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The categories of this paper are: comp-gas
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The categories of this paper are: plasm-ph
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The categories of this paper are: chao-dyn
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The categories of this paper are: nlin
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The categories of this paper are: q-bio
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The categories of this paper are: atom-ph
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The categories of this paper are: physics
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The categories of this paper are: acc-phys
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The categories of this paper are: q-fin
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The categories of this paper are: q-alg
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The categories of this paper are: math-ph
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The categories of this paper are: gr-qc
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The categories of this paper are: eess