Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Onset of Nernst Effect Beyond the Coherence Critical Field of a
  Nano-Scale Granular Superconductor   We report measurements of the Nernst effect and of the magneto-resistance of
granular aluminum films near the metal to insulator transition. These films
show sharp transitions as a function of temperature and magnetic field. At low
temperatures the Nernst signal displays a sharp peak at a field where more than
90% of the normal state resistance has been restored, suggesting a transition
involving entropy transport after superconducting coherence has been destroyed.
At temperatures higher than the critical temperature the fluctuation
paraconductivity scales with the Nernst signal, in agreement with a description
in terms of fluctuations of the order parameter.

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The categories of this paper are: hep-th
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The categories of this paper are: quant-ph
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The categories of this paper are: comp-gas
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The categories of this paper are: funct-an
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The categories of this paper are: hep-ph
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The categories of this paper are: chem-ph
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The categories of this paper are: dg-ga
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The categories of this paper are: gr-qc
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The categories of this paper are: solv-int
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The categories of this paper are: patt-sol
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The categories of this paper are: alg-geom
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The categories of this paper are: hep-ex
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The categories of this paper are: acc-phys
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The categories of this paper are: q-bio
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The categories of this paper are: nucl-th
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The categories of this paper are: q-alg