Effects of Sm-doping on Structures and Properties of YBCO Coated Conductors Fabricated by TFA-MOD Process

被引：2
作者：
Wang, P. F. [1 ,2 ]
Zhang, G. F. [1 ]
Jin, L. H. [2 ]
Yan, W. W. [1 ]
Shen, Y. [1 ]
Wang, Y. [2 ]
Li, C. S. [2 ]
Lu, Y. F. [2 ]
机构：
[1] Shaanxi Normal Univ, Key Lab Appl Surface & Colloid Chem, Minist Educ, Sch Chem & Mat Sci, Xian, Peoples R China
[2] NW Inst Nonferrous Met Res, Xian, Peoples R China
来源：
JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM | 2012年 / 25卷 / 02期
基金：
中国国家自然科学基金;
关键词：
Coated conductor; Sm doping; YBCO film; TFA-MOD process; YBA2CU3O7-DELTA FILMS; ENHANCEMENT; TRIFLUOROACETATE;
D O I：
10.1007/s10948-011-1294-2
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The Sm-doping YBCO films, Y1-x Sm (x) Ba2Cu3O (y) and Y1Sm (x) Ba2-x Cu3O (y) (x=0.1, 0.3), were fabricated on LAO (00l) single-crystal substrates by TFA-MOD process in order to improve the superconducting properties of YBCO films. The XRD analyses indicated that these samples have a strong c-axis texture, but the secondary phase of BaCuO2 are found from Y1Sm (x) Ba2-x Cu3O (y) films with Sm3+ substitution on Ba2+ sites. High quality surface, better in-plane and out-of-plane texture of the Sm-doping films have been obtained compared with that of the undoped YBCO film. The Y0.9Sm0.1Ba2Cu3O (y) films showed the highest value of T (c) and J (c) in self-field. Superconducting properties of all Sm-doping films are better than those of the pure film. These results strongly suggest that Sm-substitution on Y or Ba sites of YBCO phase is a powerful method to efficiently improve J (c) and introduce artificial pinning centers in YBCO films.
引用
收藏
页码：261 / 266
页数：6
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