Electric properties of the Y-Ba-Cu-O/Ag interface

被引：0
|
作者：
Mizushima, Koichi [1 ]
Sagoi, Masayuki [1 ]
Miura, Tadao [1 ]
Yoshida, Jiro [1 ]
机构：
[1] Toshiba Research & Development, Cent, Japan
来源：
Japanese Journal of Applied Physics, Part 2: Letters | 1988年 / 27卷 / 08期
关键词：
Ceramic Materials - Silver and Alloys - Yttrium Compounds - Electric Conductivity;
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中图分类号：
学科分类号：
摘要：
The energy gap parameter 2 induced in Ag, evaporated on an Y-Ba-Cu-O (YBCO) film, was determined by a quasi-particle tunneling experiment for a YBCO/Ag/PbOx/Pb junction. The energy gap 2 was as large as 35 mV at 4 K and decreased almost linearly with an increase in temperature, vanishing at about 45 K. The same type of junction with a larger tunnel conductance showed a tunnel-type Josephson characteristic below the critical temperature of Pb.
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