Dielectric and Electrical Transport Properties of the Fe3+-doped CaCu3Ti4O12

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	Dielectric and Electrical Transport Properties of the Fe3+-doped CaCu3Ti4O12
其他题名	Dielectric and Electrical Transport Properties of the Fe~(3+)-doped CaCu_3Ti_4O_(12)
	Yang Zhi 1; Zhang Yue 2; You Guang 1; Zhang Kun 1; Xiong Rui 1; Shi Jing 1
	2012
发表期刊	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN	1005-0302
卷号	28 期号:12 页码:1145-1150
摘要	CaCu3-xFexTi4O12 (x=0, 0.015, 0.03, 0.045, 0.06) ceramics were synthesized by sol-gel method. The electrical conduction and dielectric measurements show that the doping of a very small amount of Fe3+ ions greatly reduces the low-frequency dielectric constants and leakage, and enhances grain resistivity. For the doped samples, the appearance of the strong low-frequency peaks in the spectra of dielectric loss confirms that the doping of Fe3+ ions induces the contact-electrode effect on ceramic surface. These great changes of electrical properties may originate from the reduced amount of oxygen vacancies by doping Fe3+.
其他摘要	CaCu_(3-x)Fe_xTi_4O_(12) (x=0, 0.015, 0.03, 0.045, 0.06) ceramics were synthesized by sol-gel method. The electrical conduction and dielectric measurements show that the doping of a very small amount of Fe~(3+) ions greatly reduces the low-frequency dielectric constants and leakage, and enhances grain resistivity. For the doped samples, the appearance of the strong low-frequency peaks in the spectra of dielectric loss confirms that the doping of Fe~(3+) ions induces the contact-electrode effect on ceramic surface. These great changes of electrical properties may originate from the reduced amount of oxygen vacancies by doping Fe~(3+).
关键词	CONSTANT MATERIAL CACU3TI4O12 CALCIUM COPPER TITANATE CERAMICS RELAXATION Ceramics dc electric current Dielectric properties Doping
收录类别	CSCD
语种	英语
资助项目	[National Natural Science Foundation of China] ; [Huazhong University of Science and Technology, China]
CSCD记录号	CSCD:4727797
引用统计	被引频次：2[CSCD] [CSCD记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/144280
专题	中国科学院金属研究所
作者单位	1.武汉大学 2.Huazhong Univ Sci & Technol, Institute Sensors & Intelligent Syst, Wuhan 430074, Peoples R China 3.Huazhong University Sci & Technol, Sch Opt & Elect Informat, Wuhan 430074, Peoples R China 4.上海市地震局 5.中国科学院金属研究所
推荐引用方式 GB/T 7714	Yang Zhi,Zhang Yue,You Guang,et al. Dielectric and Electrical Transport Properties of the Fe3+-doped CaCu3Ti4O12[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2012,28(12):1145-1150.
APA	Yang Zhi,Zhang Yue,You Guang,Zhang Kun,Xiong Rui,&Shi Jing.(2012).Dielectric and Electrical Transport Properties of the Fe3+-doped CaCu3Ti4O12.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,28(12),1145-1150.
MLA	Yang Zhi,et al."Dielectric and Electrical Transport Properties of the Fe3+-doped CaCu3Ti4O12".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 28.12(2012):1145-1150.