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Synthesis and Properties of Multiferroic La‐Modified BiFeO 3 Ceramics
Author(s) -
Jiang QingHui,
Nan CeWen,
Shen ZhiJian
Publication year - 2006
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2006.01062.x
Subject(s) - multiferroics , materials science , ferroelectricity , dielectric , ceramic , magnetism , sintering , ferroelectric ceramics , piezoelectricity , dielectric loss , phase (matter) , mineralogy , condensed matter physics , composite material , optoelectronics , chemistry , physics , organic chemistry
Multiferroic Bi (1− x ) La x FeO 3 was synthesized by a modified Pechini approach. Optimal conditions for the synthesis of single‐phase Bi (1− x ) La x FeO 3 powder were reported. A conventional sintering process was used to fabricate Bi (1− x ) La x FeO 3 ceramics. Ferroelectric and magnetic loops measured at room temperature indicate the coexistence of ferroelectricity and magnetism. The La modification of BiFeO 3 has a beneficial effect on the ferroelectric and magnetic properties. The ceramic samples show a stable dielectric constant and quite low dielectric loss between 100 Hz and 10 MHz. The piezoelectric constants of Bi (1− x ) La x FeO 3 ceramics were first reported.
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