Abstract
Phase transitions of powder Cu4SeTe have been studied by high-temperature X-ray diffraction in the temperature range 300–1125 K. The results demonstrate that the low-temperature, hexagonal phase α-Cu4SeTe (a = 4.1880 Å, c = 41.8531 Å, V = 636.71 Å3, sp. gr. P61, Z = 6, ρcalc = 7.2622 g/cm3) is a β-Cu2Te-based superstructure. Above 700 ± 3 K, Cu4SeTe transforms into a cubic (γ) phase (a = 6.0672 Å, V = 223.339 Å3, sp. gr. Pa\(\overline 3 \), Z = 4).
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Original Russian Text © N.A. Alieva, G.G. Guseinov, V.A. Gasymov, Yu.I. Alyev, T.R. Mekhtiev, 2015, published in Neorganicheskie Materialy, 2015, Vol. 51, No. 7, pp. 726–729.
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Alieva, N.A., Guseinov, G.G., Gasymov, V.A. et al. Structural phase transitions of polycrystalline Cu4SeTe. Inorg Mater 51, 661–664 (2015). https://doi.org/10.1134/S0020168515070018
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DOI: https://doi.org/10.1134/S0020168515070018