High Jc YBCO films on biaxially textured Ni with oxide buffer layers deposited using electron beam evaporation and sputtering

被引:69
作者
List, FA
Goyal, A
Paranthaman, M
Norton, DP
Specht, ED
Lee, DF
Kroeger, DM
机构
[1] Oak Ridge Natl Lab, Div Met & Ceram, Oak Ridge, TN 37831 USA
[2] Oak Ridge Natl Lab, Div Chem & Analyt Sci, Oak Ridge, TN 37831 USA
[3] Oak Ridge Natl Lab, Div Solid State, Oak Ridge, TN 37831 USA
来源
PHYSICA C | 1998年 / 302卷 / 01期
关键词
YBCO; thin films; applications of high-T-c superconductors; epitaxy;
D O I
10.1016/S0921-4534(98)00154-3
中图分类号
O59 [应用物理学];
学科分类号
摘要
Epitaxial buffer layers of CeO2 and yttria-stabilized ZrO2 (YSZ) have been deposited on biaxially textured nickel using conventional electron beam evaporation and r-f sputtering. Epitaxial films of YBa2Cu3O7-delta (YBCO) have been then grown on these buffered substrates using pulsed laser deposition (PLD). Despite intermittent exposure of the buffered substrates to 1 atm air, the resulting YBCO conductors exhibited transport critical current densities (J(c)) of 0.8 MA/cm(2) at 77.3 K and H = 0 T. The dependence of J(c) of these conductors on temperature and magnetic field is similar to that of conductors prepared solely by in situ PLD. These results suggest that it may be possible to use more flexible and easily scalable fabrication methods for preparing long YBCO conductors. (C) 1998 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:87 / 92
页数:6
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