Polarization fatigue resistance of Ca-doped Pb(Zr0.52Ti0.48)O-3 thin films prepared by the sol-gel method

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	Polarization fatigue resistance of Ca-doped Pb(Zr0.52Ti0.48)O-3 thin films prepared by the sol-gel method
	T. Wei; Y. Wang; C. Zhu; X. W. Dong; Y. D. Xia; J. S. Zhu; J. M. Liu
	2008
发表期刊	Applied Physics a-Materials Science & Processing
ISSN	0947-8396
卷号	90 期号:1 页码:185-189
摘要	The ferroelectric and polarization fatigue characteristics of Pb1-xCax(Zr0.52Ti0.48)O-3 (PCZT) thin films prepared using the sol-gel method were studied. The Ca-doping slightly suppresses the ferroelectricity of Pb(Zr0.52Ti0.48)O-3 (PZT) because of the quantum paraelectric behavior of CaTiO3. Compared with PZT thin films, the PCZT (x=0.2) thin films show enhanced fatigue resistance at room temperature, further emphasized by the almost fatigue-free behavior at 100 K. The temperature-dependent dc-conductivity suggests a decrease of the oxygen vacancy density by almost 20 times and a slightly declined activation energy U for oxygen vacancies, upon increasing of the Ca-doping content from 0.0 to 0.2. It is argued that the improved fatigue endurance is ascribed to the decreasing density of oxygen vacancies due to the Ca-doping, although the lowered activation energy of oxygen vacancies is unfavorable.
部门归属	nanjing univ, solid state microstruct lab, nanjing 210093, peoples r china. chinese acad sci, int ctr mat phys, shenyang, peoples r china.;liu, jm (reprint author), nanjing univ, solid state microstruct lab, nanjing 210093, peoples r china;liujm@nju.edu.cn
关键词	Ferroelectric Fatigue Electrical-properties o Heterostructures Capacitors Electrodes Catio3
URL	查看原文
WOS记录号	WOS:000250838600031
引用统计	被引频次：11[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/33187
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	T. Wei,Y. Wang,C. Zhu,et al. Polarization fatigue resistance of Ca-doped Pb(Zr0.52Ti0.48)O-3 thin films prepared by the sol-gel method[J]. Applied Physics a-Materials Science & Processing,2008,90(1):185-189.
APA	T. Wei.,Y. Wang.,C. Zhu.,X. W. Dong.,Y. D. Xia.,...&J. M. Liu.(2008).Polarization fatigue resistance of Ca-doped Pb(Zr0.52Ti0.48)O-3 thin films prepared by the sol-gel method.Applied Physics a-Materials Science & Processing,90(1),185-189.
MLA	T. Wei,et al."Polarization fatigue resistance of Ca-doped Pb(Zr0.52Ti0.48)O-3 thin films prepared by the sol-gel method".Applied Physics a-Materials Science & Processing 90.1(2008):185-189.