INVESTIGATION OF LOW-TEMPERATURE IV CURVES OF HIGH-QUALITY NB/AL-ALOX/NB JOSEPHSON-JUNCTIONS

被引：35
作者：
MONACO, R [1 ]
CRISTIANO, R [1 ]
FRUNZIO, L [1 ]
NAPPI, C [1 ]
机构：
[1] UNIV SALERNO,DEPT PHYS,I-84100 SALERNO,ITALY
来源：
JOURNAL OF APPLIED PHYSICS | 1992年 / 71卷 / 04期
关键词：
D O I：
10.1063/1.351175
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
A detailed experimental temperature dependence of the subgap current of high-quality Nb/Al-AlOx/Nb Josephson tunnel junctions is reported. The presence of a pronounced current rise at V congruent-to DELTA/e is observed. Comparison with the theoretical model for two-particle tunneling is performed, but a substantial disagreement is found. At V < DELTA/e the measured current is in remarkably good agreement with the single particle tunneling predictions down to 2 K.
引用
收藏
页码：1888 / 1892
页数：5
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