Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: High-pressure effects on single crystals electron-doped
  r$_{2-x}$Ce$_{x}$CuO$_{4}$   We present high pressure diamond anvil cell synchrotron X-ray, resistivity,
and ac-susceptibility measurements on electron-doped cuprate
Pr$_{2-x}$Ce$_{x}$CuO$_{4}$ to much higher pressures than previously reported.
At 2.72 GPa between 88 and 98$%$ of the superconducting T$^\prime$ phase
\cite{Tprime} of the optimally doped Pr$_{1.85}$Ce$_{0.15}$CuO$_{4}$ transforms
into the insulating phase T. The T$_{c}$ of the remaining 2-12$%$ T$^\prime$
phase is suppressed continuously from 22 K to 18.5 K at about 14 GPa.
Remarkably, the T$_{c}$ of the over doped Pr$_{1.83}$Ce$_{0.17}$CuO$_{4}$
remains practically unchanged even at 32 GPa. This behavior of the
electron-doped cuprate contrasts with that of the hole-doped cuprate for which
T$_{c}$ is first substantially enhanced with applied pressure.

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The categories of this paper are: quant-ph
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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: supr-con
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The categories of this paper are: physics
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The categories of this paper are: plasm-ph
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The categories of this paper are: q-bio
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The categories of this paper are: astro-ph
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The categories of this paper are: alg-geom
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The categories of this paper are: cs
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The categories of this paper are: gr-qc
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The categories of this paper are: chao-dyn
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The categories of this paper are: solv-int
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The categories of this paper are: q-fin
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The categories of this paper are: hep-ex
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The categories of this paper are: atom-ph