摘要
用sol-gel方法在LaNiO3包覆的Si衬底上制备了(010)择优取向的BiFeO3以及Bi0.95La0.05FeO3薄膜,XRD分析结果表明,通过La的掺杂BiFeO3的择优取向度由77.0%增加到96.6%;铁电性的测试表明,通过La掺杂,使薄膜的介电性和铁电性得到了增强,剩余极化强度由0.15×10–6C/cm2增加到0.2×10–6C/cm2。
BiFeO3 and Bi0.95La0.05FeO3 of （010） preferred oriented films were prepared on LaNiO3 coated Si substrates by sol-gel method. The results of XRD show that the preferred oriention extent is increased to 96.6% from 77.0% by La doping. The results of ferroelectricity and dielectric property measurement show that the ferroelectricity and dielectric property are enhanced by La doping. Next, the remnant polarization is increased from 0.15× 10^-6 C/cm^2 to 0.2×10^-6 C/cm^2 .
出处
《电子元件与材料》
CAS
CSCD
北大核心
2005年第9期8-10,共3页
Electronic Components And Materials
基金
湖北省青年创新团队项目(鄂教科[2003]7号)
黄石市科技局项目(黄科技发成[2004]29号)
湖北师范学院青年基金资助项目
关键词
无机非金属材料
铁磁电材料
BIFEO3薄膜
择优取向
掺杂
铁电性
inorganic non-metallic materials
ferroelectromagnetics
BiFeO3 thin film. preferred orietation
doping
ferroelectricity
