Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Pressure Effect in Bi-2212 and Bi-2223 Cuprate Superconductor   We report the pressure effect in Bi2Sr2Ca2Cu3O10+{\delta} (Bi-2223) single
crystal with a small amount of intergrowth of Bi2Sr2CaCu2O8+{\delta} (Bi-2212).
Their superconducting transition temperatures Tcs showed a domelike shape as a
function of pressure, which showed a good agreement with the general relation
between the carrier concentration and Tc. Our experimental results indicate
that high pressure can induce effective carrier doping into the multilayered
high-Tc cuprate superconductor

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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: nucl-ex
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The categories of this paper are: stat
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The categories of this paper are: comp-gas
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The categories of this paper are: hep-th
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The categories of this paper are: solv-int
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The categories of this paper are: mtrl-th
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The categories of this paper are: atom-ph
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The categories of this paper are: supr-con
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The categories of this paper are: nucl-th
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The categories of this paper are: math
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The categories of this paper are: q-fin
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The categories of this paper are: gr-qc
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The categories of this paper are: q-alg
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The categories of this paper are: cs