Preparation of solution-based YBCO films with BaSnO3 particles

被引：29

作者：

Ye, Shuai ^{[1
]}

Suo, Hongli ^{[1
]}

Wu, Ziping ^{[1
]}

Liu, Min ^{[1
]}

Xu, Yan ^{[1
]}

Ma, Lin ^{[1
]}

Zhou, Meiling ^{[1
]}

机构：

[1] Beijing Univ Technol, Key Lab Adv Funct Mat, Minist Educ, Beijing 100022, Peoples R China

来源：

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2011年 / 471卷 / 7-8期

基金：

中国国家自然科学基金;

关键词：

YBCO films; Flux pinning; BaSnO3; TFA-MOD;

D O I：

10.1016/j.physc.2011.02.003

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The YBCO films with BaSnO3 (BSO) particles were prepared on LAO (0 0 1) substrates by metal organic deposition using trifluoroacetates (TFA-MOD) via introducing SnCl4 powders into the YBCO precursor solution. It was found that with the increase of the SnCl4 contents, the slower decomposition and higher temperature for nucleation during the reaction were requested compared to that of pure YBCO film. The YBCO films with different contents of Sn with dense surface and well c-alignment were obtained under optimized heat treatment, and the BaSnO3 phases were detected by XRD analysis. Litter effect of BSO particles on the T-c and J(c) values of YBCO films was found. All YBCO films with BSO particles had T-c values over 90 K and J(c) values over 1 MA/cm(2). A significant enhancement of J(c) was observed for YBCO films with BSO particles compared to that of pure YBCO film by the field dependence off, values. The best property was obtained for YBCO film with 6 mol.% Sn at 77 K under magnetic field. The results showed that the J(c) value of YBCO film with 6 mol.% Sn was enhanced by a factor of 2 in 2 T, and over a factor of 10 beyond 4T compared to that of pure YBCO film. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：265 / 269

页数：5

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