SUITABILITY OF GAP FREQUENCIES FOR THE JOSEPHSON VOLTAGE STANDARD

被引：10
|
作者：
FRANK, B
MEYER, HG
机构：
[1] Friedrich-Schiller-Universität Jena, Physikalisch-Astronomische Fakultät, Institut für Festkörperphysik, DO-6900, Jena
来源：
JOURNAL OF APPLIED PHYSICS | 1992年 / 72卷 / 07期
关键词：
D O I：
10.1063/1.351503
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We report theoretical investigations of Shapiro step formation at high microwave drive frequencies. A drive frequency equal to the gap frequency or its first subharmonic generates current-voltage characteristics that are especially well suited for Josephson voltage standards. Such drive frequencies increase the stability of the reference voltage and reduce the total number of junctions required to produce a given voltage. In contrast to conventional series-array voltage standards, the dc current bias has to be chosen on the order of the critical current.
引用
收藏
页码：2973 / 2977
页数：5
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