Phase transitions and thermodynamic properties of lanthanide compounds LnAO 4  (A = P, V, Nb)

K. S. Gavrichev; M. A. Ryumin; G. E. Nikiforova; K. I. Bryukhanova; A. V. Khoroshilov

doi:10.1134/S1070363217030343

Phase transitions and thermodynamic properties of lanthanide compounds LnAO₄ (A = P, V, Nb)

Autores: Gavrichev K.¹, Ryumin M.¹, Nikiforova G.¹, Bryukhanova K.¹, Khoroshilov A.¹
Afiliações:
1. Kurnakov Institute of General and Inorganic Chemistry
Edição: Volume 87, Nº 3 (2017)
Páginas: 583-590
Seção: Selected articles originally published in Russian in Rossiiskii Khimicheskii Zhurnal (Russian Chemistry Journal)
URL: https://journals.rcsi.science/1070-3632/article/view/219040
DOI: https://doi.org/10.1134/S1070363217030343
ID: 219040

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The influence of structural phase transitions, features of electronic structure, and magnetic transformation on the temperature dependence of the heat capacity of LnAO₄ (A = P, V, Nb) compounds has been considered. It has been shown that the sum of the contributions to the thermodynamic functions due to the phase transition can vary depending on the lanthanide ion. The contribution to the standard entropy caused by low-temperature phase transitions is the most significant.