Advances in surface-oxidation epitaxy processed substrates for YBa2Cu3O7-δ film

被引：11
作者：
Watanabe, T [1 ]
Wada, K
Ohashi, Y
Ozaki, M
Yamamoto, K
Maeda, T
Hirabayashi, I
机构：
[1] Furukawa Elect Corp Ltd, Nikko 3211493, Japan
[2] ISTEC, Supercond Res Lab, Atsuta Ku, Nagoya, Aichi 4568587, Japan
来源：
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2002年 / 378卷
关键词：
YBa2Cu3O7-delta; NiO; surface-oxidation epitaxy; cap layer; MgO; SrTiO3; CeO2;
D O I：
10.1016/S0921-4534(02)01562-9
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The preparation of long oxide template using surface-oxidation epitaxy (SOE") method and the deposition of oxide cap layer and YBa2Cu3O7-delta (YBCO) film on it have been studied for the fabrication of coated conductors. In SOE process, Cr-oxide behaves as a barrier against Cr contamination with SOE-NiO layer in high strength and low magnetism Ni-clad Ni-20wt.%Cr (Ni/NiCr) tape. MgO cap layer makes SOE-processed tape surface smooth with the average roughness of a few mn. The critical current (I-c of 8 A (the critical current density J(c) of 0.2 MA/cm(2)) was obtained for the YBCO film deposited on a 10 cm long x 5 mm width SOE-processed tape with MgO cap layer in a short sample cut from a 10 cm long specimen. J(c) exceeding 0.1 MA/cm(2) was obtained for YBCO film on SrTiO3 cap layer and CeO2 one of SOE-processed tape. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
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页码：911 / 916
页数：6
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