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Semiconductors
Synthesis, crystal structure, and thermal properties of substituted titanates Bi$_{2}$Pr$_{2}$Ti$_{3}$O$_{12}$ and Bi$_{2}$Nd$_{2}$Ti$_{3}$O$_{12}$
L. T. Denisovaa, M. S. Molokeevab, N. A. Galiakhmetovaa, V. M. Denisova, G. V. Vasil'eva a Siberian Federal University, Krasnoyarsk, Russia
b L. V. Kirensky Institute of Physics, Siberian Branch of the Russian Academy of Sciences, Krasnoyarsk, Russia
Abstract:
Titanates Bi$_{2}$Pr$_{2}$Ti$_{3}$O$_{12}$ and Bi$_{2}$Nd$_{2}$Ti$_{3}$O$_{12}$ have been obtained by the solid-phase synthesis using sequential annealing of the Bi$_{2}$O$_{3}$, Nd$_{2}$O$_{3}$, Pr$_{6}$O$_{11}$, and TiO$_{2}$ stoichiometric mixtures in air at temperatures of 1003–1323 K. Their crystal structure has been established by X-ray diffractometry and the high-temperature heat capacity has been determined by differential scanning calorimetry. Based on the experimental $C_p=f(T)$ data, the main thermodynamic functions have been calculated.
Keywords:
substituted bismuth titanate, solid-state synthesis, crystal structure, high-temperature heat capacity, thermodynamic functions.
Received: 31.03.2021 Revised: 03.04.2021 Accepted: 03.04.2021
Citation:
L. T. Denisova, M. S. Molokeev, N. A. Galiakhmetova, V. M. Denisov, G. V. Vasil'ev, “Synthesis, crystal structure, and thermal properties of substituted titanates Bi$_{2}$Pr$_{2}$Ti$_{3}$O$_{12}$ and Bi$_{2}$Nd$_{2}$Ti$_{3}$O$_{12}$”, Fizika Tverdogo Tela, 63:8 (2021), 1056–1061; Phys. Solid State, 63:8 (2021), 1159–1164
Linking options:
https://www.mathnet.ru/eng/ftt8063 https://www.mathnet.ru/eng/ftt/v63/i8/p1056
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