Fabrication of YBCO films on SrTiO3 and textured Ag substrates by TFA-MOD method

被引：2
|
作者：
Liu, M. [1 ]
Suo, H. L. [1 ]
Zhao, Y. [1 ]
Zhang, Y. X. [1 ]
He, D. [1 ]
Ma, L. [1 ]
Zhou, M. L. [1 ]
机构：
[1] Beijing Univ Technol, Coll Mat Sci & Engn, Beijing 100022, Peoples R China
来源：
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 2007年 / 17卷 / 02期
关键词：
coated conductor; textured Ag substrate; TFA-MOD; YBCO;
D O I：
10.1109/TASC.2007.898339
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this paper, we presented the result of YBCO films deposited epitaxially on both SrTiO3 single crystal and textured Ag substrates by a TFA-MOD method. The growing conditions and forming mechanisms of the YBCO films on these two kinds of substrates was investigated systematically. It was found that the precursor film coated on Ag substrate took less time to completely decompose to an amorphous precursor film during the first stage of the calcination than that on SrTiO3 substrate. Moreover, the higher temperature was needed to obtain pure YBCO phase on Ag substrate during the second annealing stage. A possible growing mechanism for this difference was described. A transport j, value of 1.5 x 10(4) A/cm(2) (at 77 K) was obtained for the YBCO film deposited on Ag substrate, while the film on SrTiO3 substrate exhibited an a T-c onset of 92 K and a high jc value of 2.3 MA/cm(2) at 77 K in self-field was measured.
引用
收藏
页码：3601 / 3604
页数：4
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