PROXIMITY EFFECT IN YBA2CU3O7-DELTA/YBA2(CU1-XCOX)(3)O-7-DELTA-3/YBA2CU3O7-DELTA JUNCTIONS - FROM THE CLEAN LIMIT TO THE DIRTY LIMIT WITH PAIR-BREAKING

被引：49

作者：

ANTOGNAZZA, L

BERKOWITZ, SJ

GEBALLE, TH

CHAR, K

机构：

[1] STANFORD UNIV, DEPT APPL PHYS, STANFORD, CA 94305 USA

[2] CONDUCTUS INC, SUNNYVALE, CA 94086 USA

来源：

PHYSICAL REVIEW B | 1995年 / 51卷 / 13期

关键词：

D O I：

10.1103/PhysRevB.51.8560

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report on the proximity effect observed in YBa2Cu3O7-δ/YBa2(Cu1- xCox)3O7-δ /YBa2Cu3O7-δ junctions in an edge-junction geometry where x=0.04, 0.07, and 0.14. The temperature, thickness, and doping dependence of the critical current of the junctions can be well described by the proximity-effect theory, due to very little interface resistance. We observed a crossover from the clean limit to the dirty limit behavior where a pair-breaking scattering time τpb=6×10-14 sec, consistent with short-range magnetic fluctuations in the barrier, was found. © 1995 The American Physical Society.

引用

页码：8560 / 8563

页数：4

共 24 条

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