Rogacheva, E. I.Sinelnik, N. A.Nashchekina, O. N.Popov, V. P.Lobkovskaya, T. A.2021-04-082021-04-081993Defects of non-stoichiometry and dynamic stability of SnTe crystal lattice [Electronic resource] / E. I. Rogacheva [et al.] // Acta Physica Polonica. – 1993. – Vol. 84, № 4. – Proceedings of the 22nd International School on Physics of Semiconducting Compounds, Jaszowiec, Poland, May 22-28, 1993. Pt. 2 / ed. A. Suchocki. – Electronic text data. – Warsaw, 1993. – P. 733-736. – URL: http://przyrbwn.icm.edu.pl/APP/PDF/84/a084z4p30.pdf, free (accessed 08.04.2021).https://repository.kpi.kharkov.ua/handle/KhPI-Press/52021The temperature dependencies of coefficient of linear expansion α in the range of 4.2-300 K were obtained for SnTe samples with various degrees of deviation from stoichiometry. For the sample of stoichiometric composition in the α vs. temperature curves the anomalies connected with ferroelectric phase transition were detected. It was found that within cubic phase existence region α isotherms have a minimum at 50.4 at.% Te. Maximum dynamic stability at indicated composition is believed to be associated with the formation of vacancy superstructure.enThesisdoi.org/10.12693/APhysPolA.84.733https://orcid.org/0000-0001-7584-656Xhttps://orcid.org/0000-0003-2578-1109