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Ferroelectricity in SrTiO 3 –BiScO 3 system
Author(s) -
Ivanov Oleg,
Danshina Elena,
Tuchina Yulia,
Sirota Vyacheslav
Publication year - 2011
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.201046354
Subject(s) - ferroelectricity , tetragonal crystal system , materials science , dielectric , hysteresis , phase transition , phase (matter) , ceramic , polarization (electrochemistry) , mineralogy , condensed matter physics , crystallography , crystal structure , chemistry , composite material , optoelectronics , physics , organic chemistry
Abstract Ceramic solid solutions of the (1 − x )SrTiO 3 – x BiScO 3 system with x = 0, 0.05, 0.1, 0.2, 0.3, 0.4, and 0.5 were synthesized for the first time via solid‐state processing techniques. Both of the end members in this system are not ferroelectric materials. X‐ray diffraction analysis revealed that at room temperature the samples with x = 0.2, 0.3, and 0.4 consist of mixtures of cubic center‐symmetric Pm 3 m phase and tetragonal polar P 4 mm phase. Dielectric measurements of these compositions demonstrated anomalies associated with a diffuse ferroelectric phase transition. Furthermore, examination of the polarization hysteresis behavior revealed weakly nonlinear hysteresis loops in the ferroelectric phase.