POSSIBLE PHASE-LOCKING OF VERTICALLY STACKED JOSEPHSON FLUX-FLOW OSCILLATORS

被引：52

作者：

USTINOV, AV ^{[1
]}

KOHLSTEDT, H ^{[1
]}

HEIDEN, C ^{[1
]}

机构：

[1] UNIV GIESSEN, INST ANGEW PHYS, D-35392 GIESSEN, GERMANY

来源：

APPLIED PHYSICS LETTERS | 1994年 / 65卷 / 11期

关键词：

D O I：

10.1063/1.112014

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A system of two vertically stacked Nb/Al-AlO(x)/Nb long Josephson junctions is studied experimentally. Tle magnetic coupling between the junctions is provided by their common electrode of the thickness d approximately lambda(L). The current-voltage characteristics of the stack displays resonant steps which are understood to be the phase-locked flux-flow resonances of the two junctions. These modes can be tuned by the magnetic field in a broad voltage range which corresponds to the Josephson frequencies between 150 and 600 GHz. Our observations suggest a possibility of application of the stacked long Josephson junctions as local oscillators for millimeter and submillimeter wave circuits.

引用

页码：1457 / 1459

页数：3

共 10 条

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