HEAT CAPACITY AND THERMODYNAMIC PROPERTIES OF COMPLEX OXIDES WITH β-PYROCLORE STRUCTURE CsTeMoO6 AND CsV0.625Te1.375O6

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The heat capacity of complex oxides with β-pyrochlore structure CsTeMoO6 and CsV0.625Te1.375O6 was investigated by adiabatic vacuum and differential scanning calorimetry in the temperature range of T = 5–500 K. The standard thermodynamic functions: heat capacity Cp o , enthalpy [H°(T)−H°(0)], absolute entropy [S°(T)] and the Gibbs energy [G°(T)−H°(0)] for the range from T → 0 to 500 K were calculated based on the obtained experimental data. The low-temperature (T < 50 K) heat capacity dependence was analyzed on the basis of multifractal model and chain-layered structure topology of the studied compounds was established.

作者简介

N. Smirnova

Lobachevsky State University of Nizhny Novgorod

Nizhny Novgorod, Russia

Yu. Sarmini

Lobachevsky State University of Nizhny Novgorod

Nizhny Novgorod, Russia

A. Markin

Lobachevsky State University of Nizhny Novgorod

Email: markin@chem.unn.ru
Nizhny Novgorod, Russia

D. Fukina

Lobachevsky State University of Nizhny Novgorod

Nizhny Novgorod, Russia

E. Suleimanov

Lobachevsky State University of Nizhny Novgorod

Nizhny Novgorod, Russia

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