Enhanced dielectric responses in Mg-doped CaCu(3)Ti(4)O(12)

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	Enhanced dielectric responses in Mg-doped CaCu(3)Ti(4)O(12)
	Li, M ; Cai, G ; Zhang, DF ; Wang, WY ; Wang, WJ ; Chen, XL
刊名	JOURNAL OF APPLIED PHYSICS
	2008
卷号	104 期号:7
关键词	BARRIER LAYER CAPACITORS COPPER-TITANATE CONSTANT
ISSN号	0021-8979
通讯作者	Chen, XL: Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Inst Phys, POB 603, Beijing 100190, Peoples R China.
中文摘要	We report the effects of the Mg doping on the dielectric properties of CaCu(3)Ti(4)O(12) in the frequency range of 200 Hz-200 kHz and in the temperature range of 58-473 K. It is found that the incorporations of Mg(2+) result in increases in the dielectric constant by 12%-20% and decreases in the dielectric loss by 41%-64% (with the minimum of 0.042 for CaCu(2.7)Mg(0.3)Ti(4)O(12)) at room temperature and at 1 kHz. The x-ray photoemission spectroscopy measurements reveal that the content of Cu(3+) increases with the increasing concentration of Mg(2+). The enhanced dielectric response may be related to the influence of Cu(3+) and/or Mg(2+). In other words, Mg(2+) is an effective ion to optimize the dielectric properties of CaCu(3)Ti(4)O(12). (c) 2008 American Institute of Physics.
收录类别	SCI
资助信息	National Natural Science Foundation of China [50502039, 50372081, 50702073]; National Basic Research Program of China [2007CB936300]; National High Technology Research and Development Program of China [2006AA03A107]; Chinese Academy of Sciences
语种	英语
公开日期	2013-09-17
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/37339]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Li, M,Cai, G,Zhang, DF,et al. Enhanced dielectric responses in Mg-doped CaCu(3)Ti(4)O(12)[J]. JOURNAL OF APPLIED PHYSICS,2008,104(7).
APA	Li, M,Cai, G,Zhang, DF,Wang, WY,Wang, WJ,&Chen, XL.(2008).Enhanced dielectric responses in Mg-doped CaCu(3)Ti(4)O(12).JOURNAL OF APPLIED PHYSICS,104(7).
MLA	Li, M,et al."Enhanced dielectric responses in Mg-doped CaCu(3)Ti(4)O(12)".JOURNAL OF APPLIED PHYSICS 104.7(2008).