期刊
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
卷 19, 期 38, 页码 26285-26295出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7cp01849e
关键词
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资金
- Defence Research and Development Organisation (DRDO), India [ERIPR/ER/0803744/M/01/1246]
- Department of Science and Technology (DST), Govt Of India [SR/S3/ME/0048/2009-SERC]
BiFeO3 (BFO) systems co-modified with Ti, Sm and Sm-Ti have been investigated for piezoelectricity together with dielectric and multiferroic properties. Structural studies revealed the coexistence of orthorhombic and rhombohedral (R3c) phases for x > 0.12. Impurity phases were shown to have hardly any effect on the remanent magnetization, which rather depends on the Fe-O-Fe bond angle. The dielectric loss was reduced considerably by substitution. A correlation between the piezoelectric coefficient and tetragonality was observed in these samples. BFO co-substituted with Sm-Ti exhibited a high piezoelectric coefficient with better ferroic properties, which revealed a unique combination of green piezoelectricity and multiferroicity.
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