MAGNETORESISTANCE PROBE OF SPATIAL CURRENT VARIATIONS IN HIGH-T-C YBA2CU3O7-SRRUO3-YBA2CU3O7 JOSEPHSON-JUNCTIONS

被引：28
|
作者：
GAUSEPOHL, SC [1 ]
LEE, M [1 ]
ANTOGNAZZA, L [1 ]
CHAR, K [1 ]
机构：
[1] CONDUCTUS INC,SUNNYVALE,CA 94086
来源：
APPLIED PHYSICS LETTERS | 1995年 / 67卷 / 09期
关键词：
D O I：
10.1063/1.114524
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The low frequency current-voltage characteristics of YBa2Cu3O7-SrRuO3-YBa2CU3O7 Josephson junctions show an increasing resistance and phase shift in fields of 0 to 8 T. A critical current is also evident up to 8 T. Data are analyzed in terms of field-induced perturbations of the current paths through the junction. Results indicate a highly inhomogeneous interface where the mean width of spatial variations in both normal and supercurrent is of order 50 to 100 Angstrom. (C) 1995 American Institute of Physics.
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页码：1313 / 1315
页数：3
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