(Видавництво Львівської політехніки, 2012) Kuz, O.; Handysh, V.; Prots, Yu.; Vasylechko, L.
The work deals with the study of the phase and structural behaviour of the rare-earth substituted BiFeO3. Xray powder diffraction examinations revealed that the polar
R3c phase in the Bi1-xRExFeO3 systems with RE = Er, Tm and Yb do not exceed 7, 4 and 3 mol.% of rare earth, respectively. Partial substitution of Er and Tm for the Bi
sites in BiFeO3 reduce the temperature of the ferroelectric phase transition R3c-Pbnm on 30-60 K.
