ANGLE-RESOLVED CRITICAL TRANSPORT-CURRENT DENSITY OF YBA2CU3O7-DELTA THIN-FILMS AND YBA2CU3O7-DELTA/PRBA2CU3O7-DELTA SUPERLATTICES CONTAINING COLUMNAR DEFECTS OF VARIOUS ORIENTATIONS

被引：67

作者：

HOLZAPFEL, B

KREISELMEYER, G

KRAUS, M

SAEMANNISCHENKO, G

BOUFFARD, S

KLAUMUNZER, S

SCHULTZ, L

机构：

[1] SIEMENS AG,RES LABS,W-8520 ERLANGEN,GERMANY

[2] CTR INTERDISCIPLINAIRE RECH AVEC IONS LOURDS,F-14040 CAEN,FRANCE

[3] HAHN MEITNER INST BERLIN GMBH,W-1000 BERLIN,GERMANY

来源：

PHYSICAL REVIEW B | 1993年 / 48卷 / 01期

关键词：

D O I：

10.1103/PhysRevB.48.600

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Epitaxial YBa2Cu3O7-delta thin films irradiated with swift heavy ions under different directions showed a strongly changed angular dependence of the critical current density J(c) (B, T, theta) in the mixed state. Additional peaks, which dominate the angular dependence of J(c), appear at angles where the magnetic field is parallel to the irradiation direction, due to the strong pinning of the introduced linear defects. Irradiated YBa2Cu3O7-delta/PrBa2Cu3O7-delta superlattices, however, reveal no additional J(c) peaks but an isotropic J(c) enhancement in a wide angular range. This contrary behavior could be explained by flux lines of different dimensionality.

引用

收藏

页码：600 / 603

页数：4

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