Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Josephson-like Colossal Resistive Switching in Nanocrystalline Y-Ba-Cu-O
  at Room Temperature   In this paper, we present data for two nanocrystalline YBa2Cu3O7-x (YBCO)
samples which both exhibit Josephson-like Colossal Resistive Switching (JCRS)
in voltage-current (V-I) traces from 4.2 K up to room temperature, in magnetic
fields up to 8 T. We report Josephson-like hysteresis for both positive and
negative current that has not been observed before in colossal resistive
switching materials. Non-zero resistance was measured in transport measurements
at all temperatures. At low temperatures (< 90 K), we also observed the usual
properties for YBCO including weak superconducting and paramagnetic behavior,
measured using ac susceptibility and magnetization measurements. The
resistivity of these nanocrystalline samples is 3 orders of magnitude higher
than standard polycrystalline materials at 300 K and the temperature dependence
semiconductor-like. We cannot rule out the possibility that these materials
contain a superconducting component responsible for the JCRS behavior at room
temperature.

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The categories of this paper are: mtrl-th
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The categories of this paper are: plasm-ph
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The categories of this paper are: solv-int
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The categories of this paper are: q-alg
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The categories of this paper are: supr-con
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The categories of this paper are: hep-th
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The categories of this paper are: nlin
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The categories of this paper are: astro-ph
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The categories of this paper are: math
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The categories of this paper are: atom-ph
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The categories of this paper are: chao-dyn
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The categories of this paper are: bayes-an
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The categories of this paper are: hep-ph
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The categories of this paper are: nucl-ex
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The categories of this paper are: ao-sci
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The categories of this paper are: stat