ANISOTROPY AND LORENTZ-FORCE DEPENDENCE OF THE CRITICAL CURRENTS IN YBA2CU3O7-DELTA THICK-FILMS DEPOSITED ON NICKEL-ALLOY SUBSTRATES

被引：57

作者：

SAFAR, H

COULTER, JY

MALEY, MP

FOLTYN, S

ARENDT, P

WU, XD

WILLIS, JO

机构：

[1] Superconductivity Technology Center, Los Alamos National Laboratory, Los Alamos

来源：

PHYSICAL REVIEW B | 1995年 / 52卷 / 14期

关键词：

D O I：

10.1103/PhysRevB.52.R9875

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We investigate the angular dependence of the critical currents in YBa(2)Cn(3)O(7-delta) thick films deposited on metallic nickel-alloy substrates, with the aid of an yttria-stabilized zirconia buffer layer. Overall, the critical current shows a clear Lorentz-force dependence and two distinctive peaks, one for fields parallel to the ab plane, due to bulk intrinsic pinning by the layered structure of the superconductor, and the other for fields parallel to the c axis, which we attribute to twin-boundary c-axis correlated pinning, as suggested by its Lorentz-force dependence.

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页码：R9875 / R9878

页数：4

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