Abstract
The effects of europium (Eu) content on the microstructure, fatigue endurance, leakage current density, and remnant polarization (2Pr) of Bi4−xEuxTi3O12 (BET) thin films prepared by metal-organic decomposition method at 700°C annealing temperature were studied in detail. The results showed that 2Pr (82μC∕cm2 under 300kV∕cm), fatigue endurance (2% loss of 2Pr after 9.0×109 switching cycles), and leakage current density (1×10−8A∕cm2 at 200kV∕cm) of BET thin film with x=0.85 are better than those of thin films with other contents. Additionally, the mechanism concerning the dependence of ferroelectric properties on Eu content was discussed.
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