The electrical properties and phase transformation of PLZST 2/85/13/2 antiferroelectric thin films on different bottom electrode

被引:33
作者
Hao, Xihong [1 ]
Zhai, Jiwei [1 ]
Chou, Xiujian [1 ]
Yao, Xi [1 ]
机构
[1] Tongji Univ, Funct Mat Res Lab, Shanghai 200092, Peoples R China
基金
中国国家自然科学基金;
关键词
PLZST antiferroelectric thin films; electric property; phase transformation;
D O I
10.1016/j.ssc.2007.03.048
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
Pb0.97La0.02(Zr0.85Sn0.13Ti0.02)O-3 (PLZST 2/85/13/2) antiferroelectric thin films were deposited on Pt(111)/Ti/SiO2/Si and LaNiO3 (LNO)/SiO2/Si substrates through a modified sol-gel process. The phase structure and microstructure of PLZST 2/85/13/2 antiferroelectric thin films were analysed by x-ray diffraction (XRD), scanning electron microcopy (SEM) and field-emission SEM (FE-SEM). The antiferroelectric nature of the PLZST 2/85/13/2 thin films on two electrodes was demonstrated by the C-V (capacitance-voltage) and P-E (polarization-electric field) measurement. The maximum polarizations for PLZST 2/85/13/2 films on Pt and LNO electrodes were 42 and 18 mu C/cm(2), respectively. The temperature dependence of the dielectric property of the PLZST 2/85/13/2 films was measured under different dc electric fields. Also, the phase transformation of the PLZST 2/85/13/2 films was studied in detail as a function of temperature and dc electric field. (c) 2007 Elsevier Ltd. All rights reserved.
引用
收藏
页码:498 / 503
页数:6
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