Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Revisiting heat capacity of bulk polycrystalline YBa2Cu3O7-{\delta}   In this letter, we present the superconducting property characterization of a
phase pure reasonably good quality YBa2Cu3O7-{\delta} sample. Studied compound
is crystallized in orthorhombic Pmmm space group with lattice parameters a, b,
and c are 3.829(2) {\AA}, 3.887(1) {\AA} and 11.666(3) {\AA} respectively. Bulk
superconductivity is observed below 90K as evidenced by resistivity and dc/ac
magnetization measurements. The resistivity under magnetic field ({\rho}TH)
measurements showed clearly both the intra-grain and inter-grain transitions,
which are supplemented by detailed (varying frequency and amplitude) ac
susceptibility studies as well. The upper critical field at 0K i.e., Hc2(0)
being determined from {\rho}TH measurements with 50% criteria of resistivity
drope is ~ 70 Tesla. Studied polycrystalline YBa2Cu3O7-{\delta} is subjected to
detailed heat capacity (CP) studies. Cp exhibited well defined anomaly at below
90 K, which decreases with applied field. Though the Cp anomaly/peak at Tc
reduces with applied field, the same is not completely suppressed in high
applied fields of up to 12 Tesla. The Sommerfeld constant ({\gamma}) and Debye
temperature ({\Theta}D) as determined from low temperature fitting of CP(T)
data to Sommerfeld-Debye model, are 10.65 mJ/mole-K2 and 312.3 K respectively.
The results are compared with existing literature on bulk polycrystalline
superconducting YBa2Cu3O7-{\delta} sample

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The categories of this paper are: quant-ph
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The categories of this paper are: physics
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The categories of this paper are: nlin
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The categories of this paper are: gr-qc
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The categories of this paper are: chem-ph
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The categories of this paper are: solv-int
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The categories of this paper are: hep-ex
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The categories of this paper are: q-fin
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The categories of this paper are: cs
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The categories of this paper are: adap-org
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The categories of this paper are: econ
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The categories of this paper are: atom-ph
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The categories of this paper are: eess
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The categories of this paper are: bayes-an
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The categories of this paper are: plasm-ph
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The categories of this paper are: ao-sci