SUPERCONDUCTING CHARACTERISTICS OF A PLANAR-TYPE HOBA2CU3O7-X-LA1.5BA1.5CU3O7-Y-HOBA2CU3O7-X JUNCTION

被引：62
|
作者：
TARUTANI, Y
FUKAZAWA, T
KABASAWA, U
TSUKAMOTO, A
HIRATANI, M
TAKAGI, K
机构：
[1] Central Research Laboratory, Hitachi, Ltd., Kokubunji
来源：
APPLIED PHYSICS LETTERS | 1991年 / 58卷 / 23期
关键词：
D O I：
10.1063/1.104790
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
A planar-type junction of HoBa2Cu3O7-x - La1.5Ba1.5Cu3O7-y - HoBa2Cu3O7-x having an electrode spacing as small as 0.1-mu-m is fabricated and its electrical characteristics are measured. Supercurrent through the La1.5Ba1.5Cu3O7-y layer is detected up to the temperature of 69 K. A superconducting region extends from the YBa2Cu3O7-x electrodes into a normal La1.5Ba1.5Cu3O7-y layer with a submicrometer scale. The superconducting decay length is 65 nm, which is two orders of magnitude larger than the value calculated from the conventional proximity theory.
引用
收藏
页码：2707 / 2709
页数：3
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