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Information × Registration Number 0214U003458, 0111U010236 , R & D reports Title Thermodynamics of critical phenomena in the vicinity of special points on the phase diagrams of ferroics popup.stage_title Head Burak Yaroslav Volodymyrovych, Registration Date 04-02-2014 Organization Institute of Physical Optics named after O.G. Vlokh of Ministry of Education and Science of Ukraine popup.description2 To elucidate the possible existence of special points on the phase diagram of single crystals of solid solutions of the langbeinites family K2xRb2(1-x)Cd2(SO4)3 crystals with x = 0.05, 0.1, 0.2, 0.3 and 0.4 were grown from an aqueous solution and with x = 1.0, 0.8 and 0.9 - by Bridgman method. On the base of optical birefringence study and optical-polarization studies of single crystals with mentioned x values at atmospheric pressure the х,Т diagram of K2xRb2(1-x)Cd2(SO4)3 langbeinites was ascertained. On the base of studies of temperature dependences of the velocity of acoustic waves and optical birefringence at different values of hydrostatic pressure the (p, T, x) - phase diagram of Sn2P2(SexS1-x)6 solid solutions was specified. In addition, studies of acoustic and thermal properties of single crystals Pb2P2Se6 were carried out. Product Description popup.authors Адамів Володимир Теодорович Бурак Ярослав Володимирович Васильків Юрій Васильович Влох Ростислав Орестович Запека Богдан Євгенович Мартинюк-Лотоцька Ірина Юріївна Мись Оксана Григорівна Сай Андрій Степанович Теслюк Ігор Михайлович popup.nrat_date 2020-04-02 Close