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- W1625625268 abstract "Low-temperature specific-heat C measurements as a function of temperature T between 0.5 and 30 K are reported for ${mathrm{Y}}_{1mathrm{ensuremath{-}}mathit{x}}$${mathrm{Pr}}_{mathit{x}}$${mathrm{Ba}}_{2}$${mathrm{Cu}}_{3}$${mathrm{O}}_{7mathrm{ensuremath{-}}mathrm{ensuremath{delta}}}$ compounds with x=0, 0.2, 0.3, 0.4, 0.6, 0.8, and 1.0. The Pr contribution to the specific heat of all of the samples can be described as the sum of a Pr nuclear Schottky anomaly of the form ${mathit{C}}_{mathit{N}}$(T)=${mathit{AT}}^{mathrm{ensuremath{-}}2}$, a linear term ${mathit{C}}_{mathit{L}}$(T)=ensuremath{gamma}T, and a Pr magnetic anomaly. For compounds with xensuremath{le}0.6, which are metallic and superconducting, the Pr magnetic specific-heat anomaly has the same temperature dependence as a Kondo anomaly. For the compounds with xensuremath{ge}0.8, which are insulating, the magnetic specific-heat anomaly is consistent with antiferromagnetic ordering of the Pr ions with N'eel temperatures ${mathit{T}}_{mathit{N}}$ of 10.9 and 15.7 K for x=0.8 and 1.0, respectively. For T${mathit{T}}_{mathit{N}}$, the antiferromagnetic specific-heat anomaly has the form ${mathit{C}}_{mathit{M}}$(T)=${mathit{MT}}^{3}$, characteristic of three-dimensional antiferromagnetic magnons." @default.
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- W1625625268 title "Low-temperature specific heat of the<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant=normal>Y</mml:mi></mml:mrow><mml:mrow><mml:mn>1</mml:mn><mml:mi mathvariant=normal>−</mml:mi><mml:mi mathvariant=italic>x</mml:mi></mml:mrow></mml:msub></mml:mrow></mml:math><mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant=normal>Pr</mml:mi></mml:mrow><mml…" @default.
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- W1625625268 doi "https://doi.org/10.1103/physrevb.43.5430" @default.
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