MUTUAL PHASE-LOCKING OF 2 HIGH-TC JOSEPHSON-JUNCTIONS FROM 0.2 TO 1 THZ

被引：19

作者：

EDSTAM, J ^{[1
]}

OLSSON, HK ^{[1
]}

机构：

[1] GOTHENBURG UNIV,S-41124 GOTHENBURG,SWEDEN

来源：

APPLIED PHYSICS LETTERS | 1994年 / 64卷 / 19期

关键词：

D O I：

10.1063/1.111534

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have demonstrated mutual phase locking of two YBa2Cu3O7 Josephson junction oscillators in the frequency range from 0.2 to 1 THz. A maximum power of 0.2 muW was delivered to a distributed 8 OMEGA load at 0.7 THz. The corresponding dc locking current, \I(L)\, was 43 muA. A maximum locking current of 75 muA at 0.44 THz or 7% of the critical current agrees well with a calculated maximum value of 6% for this circuit. The excellent high frequency operation is due to the use of a lumped microstrip circuit and a high characteristic voltage of the grain boundary junctions (1.7 mV at 4 K). This circuit was continuously tunable for all frequencies and was operated from 4 to 60 K.

引用

页码：2587 / 2589

页数：3

共 6 条

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