Title :
Phase composition and crystal structure of the RE-substituted BiFeO3 (RE = Er, Tm, Yb)
Author :
Kuz, O. ; Handysh, V. ; Prots, Yu. ; Vasylechko, L.
Author_Institution :
Lviv Polytechnic National University, Ukraine
Abstract :
The work deals with the study of the phase and structural behaviour of the rare-earth substituted BiFeO3. X-ray 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.
Keywords :
Crystals; Diffraction; Erbium; Lattices; Powders; X-ray diffraction; BiFeO3-based solid solutions; crystal structure; multiferroics; phase transition; thermal expansion;
Conference_Titel :
Oxide Materials for Electronic Engineering (OMEE), 2012 IEEE International Conference on
Conference_Location :
Lviv, Ukraine
Print_ISBN :
978-1-4673-4491-3
DOI :
10.1109/OMEE.2012.6464823
