无机材料学报2011，Vol.26Issue(7)：765-768,4.DOI:10.3724/SP.J.1077.2011.00765
提高YBCO薄膜高场性能的研究
Research on Improving In-field Property of YBCO Films
摘要
Abstract
YBCO films doped with Zr or substituted by Gd element were prepared by fluorine-reduced metal organic deposition (MOD) on LAO single crystal. The influences of different dopants on in-field critical current density (Jc) of YBCO films were investigated. It is found that the JC values of YBCO films in high field were enhanced drastically through substituting Y site by Gd element partially, while the Jc values of YBCO films in low field are not enhanced. The JC values of YBCO films in low field are improved significantly by adding extra Gd element into YBCO film because of the formation of rare earth oxide particles in YBCO film. But in high field, it has slight effect on Jc values. It is an effective method to improve the property of YBCO film by adding Zr-contained compounds into YBCO film to form BZO nano particles, which can enhance Jc values of YBCO film in low field and in high field. Finally, the high performance Yo.5Gdo.5BCO film incorporated with BZO nano particles was prepared. The max pinning force (Fp(max)) is up to 16GN/cm3, as higher as 4 times of that of pure YBCO film. Jc values of Yo.3Gdo.5BCO+Zr film at 65K reach 1.31MA/cm2(3T) and 87.7kA/cm2(7T).关键词
MOD/Gd取代/Zr掺杂/YBCO薄膜Key words
MOD/ Gd substitution/ Zr dopping/ YBCO film分类
化学工程引用本文复制引用
叶帅,索红莉,吴紫平,刘敏,徐燕,马麟..提高YBCO薄膜高场性能的研究[J].无机材料学报,2011,26(7):765-768,4.基金项目
973计划项目(2006CB601005) （2006CB601005）
国家863项目(2009AA032401) （2009AA032401）
国家自然科学基金(50771003) （50771003）
