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

页码：1888 / 1892

页数：5

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