Superconducting characterization of Ni/Bi2Sr2Ca2Cu3Oy superconductors

被引：6
作者：
Tokuda, T. [1 ]
Hidaka, K. [1 ]
Kishida, S. [1 ]
机构：
[1] Tottori Univ, Dept Elect & Elect Engn, Tottori 6808552, Japan
来源：
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2007年 / 463卷 / SUPPL.期
关键词：
Bi2Sr2Ca2Cu3Oy; ferromagnetic film; Josephson junction; degraded of superconductivity;
D O I：
10.1016/j.physc.2007.04.277
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We deposited non-superconducting materials, Ni metal on the surface of Bi2Sr2Ca2Cu3Oy (BSCCO) superconductors. Critical temperature (T-c) and critical current (I-c of Ni/BSCCO specimens decreased with increasing thickness of Ni films. This indicates that the Tc and the I, of the BSCCO films are degraded with a thickness of Ni. This behavior is approximately equal to that of a Ni/YBa2Cu3Oy (YBCO) specimen, where the Tc and the Ic of it were dependent on rf power during Ni deposition. Therefore, the degradation of the Ni/ BSCCO specimen may be due to the Ni diffusion into the BSCCO films, (C) 2007 Published by Elsevier BN.
引用
收藏
页码：942 / 944
页数：3
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