Hreb, VasylVasylechko, LeonidProts, YuriiFitch, Andrew2018-04-102018-04-102016New mixed perovskite RCo0.5Cr0.5O3 (R = Dy, Ho, Er) as a potential thermoelectric and sensory material / Vasyl Hreb, Leonid Vasylechko, Yurii Prots, Andrew Fitch // Litteris et Artibus : proceedings of the 6th International youth science forum, November 24–26, 2016, Lviv, Ukraine / Lviv Polytechnic National University. – Lviv : Lviv Polytechnic Publishing House, 2016. – P. 47–48. – Bibliography: 5 titles.https://ena.lpnu.ua/handle/ntb/40246The mixed earth rare cobaltites and chromites with general formula RCo0.5Cr0.5O3 (R = Dy, Ho, Er) were obtained by solid state reaction in air at 1373 K. Based on high temperature X-ray synchrotron powder diffraction data in range temperature 298 –1273 K abnormal thermal expansion of lattice dimensions was observed. Thermal expansion coefficient showed maxima, which point on insulator-metal transition. Abnormal behavior is associated with changes of spin state of Co3+ ions.enperovskitethermal expansionlattice parametersinsulator-metal transitionspin statemixed cobaltites and chromitesspin transitionConference Abstract47-48