CORRELATION BETWEEN JC AND SCREW DISLOCATION DENSITY IN SPUTTERED YBA2CU3O7-DELTA FILMS

被引：96

作者：

MANNHART, J ^{[1
]}

ANSELMETTI, D ^{[1
]}

BEDNORZ, JG ^{[1
]}

CATANA, A ^{[1
]}

GERBER, C ^{[1
]}

MULLER, KA ^{[1
]}

SCHLOM, DG ^{[1
]}

机构：

[1] UNIV BASEL, INST PHYS, CH-4056 BASEL, SWITZERLAND

来源：

ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER | 1992年 / 86卷 / 02期

关键词：

D O I：

10.1007/BF01313823

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Electric transport properties of sputtered YBa2Cu3O7-delta films were studied as a function of screw dislocation density, ranging from 5.10(7) cm-2 to 1.3.10(9) cm-2 as determined at the film surface. A correlation was found between the number of screw dislocations and the critical current density (J(c)). Films with higher screw dislocation densities have higher critical current densities and a slower drop of J(c) as a function of applied magnetic field H.

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页码：177 / 181

页数：5

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