Low-temperature heat capacity and Schottky anomaly of ErVO 4

K. S. Gavrichev; M. A. Ryumin; A. V. Tyurin; G. E. Nikiforova; V. N. Gus’kov; A. P. Kritskaya; K. I. Bryukhanova; P. G. Gagarin

doi:10.1134/S0036024417040094

Low-temperature heat capacity and Schottky anomaly of ErVO₄

作者: Gavrichev K.S.¹, Ryumin M.A.¹, Tyurin A.V.¹, Nikiforova G.E.¹, Gus’kov V.N.¹, Kritskaya A.P.¹, Bryukhanova K.I.¹, Gagarin P.G.¹
隶属关系:
1. Kurnakov Institute of General and Inorganic Chemistry
期: 卷 91, 编号 4 (2017)
页面: 727-732
栏目: Structure of Matter and Quantum Chemistry
URL: https://journal-vniispk.ru/0036-0244/article/view/169416
DOI: https://doi.org/10.1134/S0036024417040094
ID: 169416

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The heat capacity of erbium orthovanadate was studied by adiabatic calorimetry in the temperature range 5–340 K. The smoothed temperature dependences of the thermodynamic functions in the given temperature range and the Gibbs energy of formation of ErVO₄ under the standard conditions were calculated from the experimental and literature data. The anomalous heat capacity related to the separation of the Stark electronic levels under the action of the crystal field was evaluated.