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Thermodynamic Properties of Pr2Hf2O7 at Low Temperatures

  • PHYSICOCHEMICAL ANALYSIS OF INORGANIC SYSTEMS
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Abstract

The molar heat capacity of praseodymium hafnate with the pyrochlore structure in the temperature range 2.4–345.6 K was measured by relaxation and adiabatic calorimetry. The thermodynamic functions of Pr2Hf2O7 were calculated, and the anomalous entropy in the range 0–20 K was estimated. The general form of the anomalous heat capacity at 20–300 K was determined.

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ACKNOWLEDGMENTS

This work was performed using equipment of the Center for Common Use of Physical Methods of Investigation of Substances and Materials, Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Moscow, Russia.

Funding

This work was supported by the Russian Science Foundation (project no. 18-13-00025; https://rscf.ru/project/18-13-00025).

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Authors and Affiliations

  1. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, 119991, Moscow, Russia

    A. V. Guskov, P. G. Gagarin, V. N. Guskov, A. V. Tyurin & K. S. Gavrichev

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  1. A. V. Guskov
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  2. P. G. Gagarin
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  3. V. N. Guskov
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  4. A. V. Tyurin
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Correspondence to A. V. Guskov.

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Translated by V. Glyanchenko

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Guskov, A.V., Gagarin, P.G., Guskov, V.N. et al. Thermodynamic Properties of Pr2Hf2O7 at Low Temperatures. Russ. J. Inorg. Chem. 67, 201–208 (2022). https://doi.org/10.1134/S003602362202005X

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