烷氧基衍生BaTiO3薄膜在LaNiO3/Pt/TiOx/Si(100)上的介电性能

2007 Sixteenth IEEE International Symposium on the Applications of Ferroelectrics Pub Date : 2007-05-27 DOI:10.1109/ISAF.2007.4393305

K. Kato, K. Suzuki, S. Kayukawa, K. Tanaka, Yiping Guo

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引用次数: 0

摘要

采用非均相LaNiO3成核层和均相BaTiO3缓冲层制备了具有较高(100)取向度的BaTiO3薄膜。对其微观结构和介电性能进行了表征。另外还讨论了介电性能的温度依赖性。烷氧基衍生的1-mum厚BaTiO3具有独特的微观结构和优势(100)取向。薄膜在105℃左右表现出铁电向准电的转变，并改善了介电性能。这种改进被认为是由于使用双成核层和缓冲层同时控制了晶体学和微观结构特征。

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Dielectric Properties of Alkoxy-Derived BaTiO3 Films on LaNiO3/Pt/TiOx/Si(100)

BaTiO3 films with higher degrees of (100) orientation were deposited using both of the heterogeneous LaNiO3 nucleation layer and homogeneous BaTiO3 buffer layer. The microstructure and dielectric properties are characterized. The temperature dependence of the dielectric properties is additionally discussed. The alkoxy-derived 1-mum thick BaTiO3 had the unique microstructure and showed predominant (100) orientation. The film showed ferroelectric to paraelectric transition around at 105degC, and improved dielectric properties. The improvement is considered to be due to the simultaneous control of crystallographic and microstructural characteristics by using the double nucleation and buffer layers.

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2007 Sixteenth IEEE International Symposium on the Applications of Ferroelectrics

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