Effect of modulated antiparallel domain patterns on the dielectric permittivity in epitaxial Bi2Ti4O11-Bi4Ti3O12 films

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	Effect of modulated antiparallel domain patterns on the dielectric permittivity in epitaxial Bi2Ti4O11-Bi4Ti3O12 films
	Jiang, AQ ; Chen, ZH ; Chen, F ; Zhou, YL ; He, M ; Yang, GZ
刊名	PHYSICAL REVIEW B
	2001
卷号	63 期号:10
关键词	BI4TI3O12 THIN-FILMS DEPOSITION SYSTEM GROWTH
ISSN号	0163-1829
通讯作者	Jiang, AQ: Chinese Acad Sci, Inst Phys, Lab Opt Phys, POB 603, Beijing 100080, Peoples R China.
中文摘要	The REBa2Cu3O7 family has similar T-c and structural parameters, but with a little difference both in T-c and lattice parameters. When substituting with other rare earth elements for yttrium, e.g. Ho doping in YBCO, there should exist lattice mismatch between HBCO and YBCO unit cells nearby, or among small grains, because of the different lattice parameters, especially ill the c-axis. It could induce the stress field around the interface. The stress field induced by lattice mismatch will lead a free energy gradient in coherence length region, which could play a role as pinning centre as that in conventional superconductors. Using the effective defect model, the pinning force has been estimated. For confirming the idea and model, Ho-doped. Gd-doped YBCO thin film, the He-doping MTG YBCO sample have been prepared, which shows the critical current is enhanced. Positron annihilation and other physical analyses have been done to identify the flux pinning from the stress field induced by lattice mismatch. Different arguments will be discussed in this report also. (C) 2001 Elsevier Science B.V. All rights reserved.
收录类别	SCI
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/311004/36497]
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	Jiang, AQ,Chen, ZH,Chen, F,et al. Effect of modulated antiparallel domain patterns on the dielectric permittivity in epitaxial Bi2Ti4O11-Bi4Ti3O12 films[J]. PHYSICAL REVIEW B,2001,63(10).
APA	Jiang, AQ,Chen, ZH,Chen, F,Zhou, YL,He, M,&Yang, GZ.(2001).Effect of modulated antiparallel domain patterns on the dielectric permittivity in epitaxial Bi2Ti4O11-Bi4Ti3O12 films.PHYSICAL REVIEW B,63(10).
MLA	Jiang, AQ,et al."Effect of modulated antiparallel domain patterns on the dielectric permittivity in epitaxial Bi2Ti4O11-Bi4Ti3O12 films".PHYSICAL REVIEW B 63.10(2001).