SHAPIRO-LIKE STEPS FROM A WEAKLY COUPLED JUNCTION PREPARED WITH HIGH-TC SUPERCONDUCTING MATERIALS

被引：4

作者：

KISHINO, S

KURODA, H

SHIBUTANI, T

NIU, H

机构：

[1] Department of Electronics, Faculty of Engineering, Himeji Institute of Technology, Himeji 671-22

来源：

APPLIED PHYSICS LETTERS | 1994年 / 65卷 / 06期

关键词：

D O I：

10.1063/1.112229

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A trilayer junction composed of YBa2Cu3Oy/La0.7Ca0.3MnOz/YBa2Cu3Oy is prepared and the current-voltage (I-V) characteristics are examined with and without microwave illumination. The flow of the superconducting current is observed through the trilayer junction. At the same time, the trilayer junction is illuminated with microwaves. Resultant I-V curves show Shapiro-like steps, the spacing of which is different from that of the real Shapiro steps as well as the increase of electrical resistance of the junction by the illumination. It is also observed that the Shapiro-like steps exhibit a kind of negative resistance on the current-voltage curve.

引用

页码：781 / 783

页数：3

共 12 条

[1]

HANADA M, UNPUB

[2] JOSEPHSON CHARACTERISTICS IN A-AXIS ORIENTED YBA2CU3O7-DELTA/PRBA2CU3O7-DELTA'/YBA2CU3O7-DELTA JUNCTIONS [J].