Thermodynamic Properties of Monoclinic Neodymium Orthotantalate  M -NdTaO 4

V. N. Guskov; E. G. Sazonov; A. V. Tyurin; A. V. Guskov; M. A. Ryumin; K. S. Gavrichev

doi:10.1134/S0036023619080059

Thermodynamic Properties of Monoclinic Neodymium Orthotantalate M-NdTaO₄

Authors: Guskov V.N.¹, Sazonov E.G.², Tyurin A.V.¹, Guskov A.V.¹, Ryumin M.A.¹, Gavrichev K.S.¹
Affiliations:
1. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences
2. OOO “Protection Coatings Technologic Systems”
Issue: Vol 64, No 8 (2019)
Pages: 1041-1046
Section: Physical Methods of Investigation
URL: https://journals.rcsi.science/0036-0236/article/view/169456
DOI: https://doi.org/10.1134/S0036023619080059
ID: 169456

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Abstract

The isobaric heat capacity of neodymium orthotantalate M-NdTaO₄ was measured using adiabatic calorimetry in the temperature range 7–342 K. Smoothed heat capacity values were used to calculate the thermodynamic functions (entropy, enthalpy increment, and reduced Gibbs free energy) in the region 0–345 K with the contribution of low-temperature (<8 K) magnetic transformation being ignored.