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首页> 外文期刊>Solid State Communications >Compositional dependence of ferroelectric properties of highly c-axis oriented Bi4-xNdxTi3O12 film capacitors
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Compositional dependence of ferroelectric properties of highly c-axis oriented Bi4-xNdxTi3O12 film capacitors

机译：高c轴取向Bi4-xNdxTi3O12薄膜电容器铁电性能的成分依赖性

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摘要

Highly c-axis oriented neodymium-modified bismuth titanate (Bi4-xNdxTi3O12) films having a variety of neodymium (Nd) contents were successfully grown on Pt/TiO2/SiO2/Si(100) substrates using metal-organic sol decomposition. After systematically examining ferroelectric properties of the c-axis oriented Bi4-xNdxTi3O12 film capacitors as a function of the Nd-content, we concluded that the capacitor with x = 0.85 had the largest remanent polarization. The Bi3.15Nd0.85Ti3O12 capacitor fabricated using a top Pt electrode showed well-saturated polarization-electric field (P-E) switching curves with the remanent polarization (P-gamma) of 51 muC/cm(2) and the coercive field (E-c) of 99 kV/cm at an applied voltage of 10 V. More importantly, the Pt/Bi3.15Nd0.85Ti3O12/Pt capacitor exhibited fatigue-free behavior up to 4.5 X 10(10) read/write switching cycles at a frequency of 1 MHz. The capacitor also demonstrated an excellent charge-retaining ability and a strong resistance against the imprinting failure. (C) 2003 Elsevier Ltd. All rights reserved. [References: 13]
机译：使用金属有机溶胶分解法，在Pt / TiO2 / SiO2 / Si（100）衬底上成功生长了具有多种钕（Nd）含量的高c轴取向钕改性钛酸铋（Bi4-xNdxTi3O12）薄膜。系统地检查了c轴取向的Bi4-xNdxTi3O12薄膜电容器的铁电性能随Nd含量的变化，我们得出结论，x = 0.85的电容器具有最大的剩余极化强度。使用顶部Pt电极制造的Bi3.15Nd0.85Ti3O12电容器显示出饱和饱和的极化电场（PE）切换曲线，剩余极化（P-γ）为51μC/ cm（2）和矫顽场（Ec）在10 V的施加电压下达到99 kV / cm兆赫该电容器还显示出优异的电荷保持能力和对压印失败的强抵抗力。 （C）2003 Elsevier Ltd.保留所有权利。 [参考：13]

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