Crystal Structure and Thermodynamic Properties of Titanate ErGaTi2O7

Denisova, L. T.; Molokeev, M. S.; Ryabov, V. V. et al. RUSSIAN JOURNAL OF INORGANIC CHEMISTRY. https://doi.org/10.1134/S0036023621040082

Erbium gallium titanate was prepared by solid-phase synthesis via the sequential calcination of precursor oxides in an air atmosphere at 1273 and 1573 K. The crystal structure of ErGaTi2O7 was characterized by full-profile analysis for the X-ray diffraction pattern of the synthesized powder sample as follows: space group Pcnb, a = 9.77326(15) Å, b = 13.5170(2) Å, c = 7.33189(11) Å, V = 918.58(3) Å3, ρ = 6.10 g/cm3. The high-temperature heat capacity of erbium gallium titanate was measured by differential scanning calorimetry within a temperature range of 320–1000 K. Based on these data, the basic thermodynamic functions of ErGaTi2O7 were calculated.

https://doi.org/10.1134/S0036023621040082


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