Switchable Ferroelectric Diode Effect and Piezoelectric Properties of Bi 0.9 La 0.1 FeO 3 Ceramics
作者： Yu-Fei Gong , Ping Wu , Wei-Fang Liu , Shou-Yu Wang , Guang-Yao Liu
DOI: 10.1088/0256-307X/29/4/047701
关键词:
摘要: Multiferroic ceramics Bi0.9La0.1FeO3 are synthesized by solid-state reactions and sintered at various temperatures. The rhombohedral structure with the space group R3c is confirmed means of x-ray diffraction, their multiferroic properties investigated. 880 degrees C found to have lowest leakage current density largest saturated polarization among all samples. A diode-like current-voltage hysteresis that could be switched an external voltage observed in ceramics. typical "butterfly" shaped strain-versus-voltage curve shown a maximum strain 0.09% 7 kV. Room-temperature magnetization exhibits loop, indicating modulation spin BiFeO3 has been suppressed.
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