SELF-INDUCED RESONANCES IN YBCO BICRYSTAL GRAIN-BOUNDARY JOSEPHSON-JUNCTIONS

被引：3

作者：

WINKLER, D ^{[1
]}

ZHANG, YM ^{[1
]}

NILSSON, PA ^{[1
]}

STEPANTSOV, EA ^{[1
]}

CLAESON, T ^{[1
]}

机构：

[1] RUSSIAN ACAD SCI,INST CRYSTALLOG,MOSCOW 117333,RUSSIA

来源：

PHYSICA B | 1994年 / 194卷

关键词：

D O I：

10.1016/0921-4526(94)91385-4

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We have investigated YBCO grain boundary junctions formed on YSZ bicrystal (0-32-degrees) substrates. We observed strong magnetic field dependent peaks in the Josephson current for certain voltage biases. We relate the structures to self-induced Fiske steps, where the junction electrodes along the grain boundary form a resonator of length L, and the ac Josephson current sets up a standing wave for frequencies f(n) = n. cBAR/2L. For L = 20 mum, resonances occurred at f1 = 280 GHz, f2 = 490 GHz, f3 = 640 GHz. A good agreement between the calculated Fiske-modes and the experimental dependence was obtained.

引用

页码：1771 / 1772

页数：2

共 5 条

[1]

BARONE A, 1982, PHYSICS APPLICATIONS

[2] ORIENTATION DEPENDENCE OF GRAIN-BOUNDARY CRITICAL CURRENTS IN YBA2CU3O7-DELTA BICRYSTALS [J].