TRANSPORT-PROPERTIES OF YBA2CU3O7/PRBA2CU3O7 SUPERLATTICES

被引：45

作者：

JAKOB, G

HAHN, T

STOLZEL, C

TOMEROSA, C

ADRIAN, H

机构：

来源：

EUROPHYSICS LETTERS | 1992年 / 19卷 / 02期

关键词：

SUPERCONDUCTING FILMS; FLUX PINNING; FLUX MOTION; FLUXON-DEFECT INTERACTIONS; SUPERCONDUCTING LAYER STRUCTURES AND INTERCALATION COMPOUNDS;

D O I：

10.1209/0295-5075/19/2/013

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We investigated the transport properties of high-quality YBa2Cu3O7/PrBa2Cu3O7 superlattices. The exceptional structural order of the superlattices resulted in satellite peaks up to the ninth order in X-ray diffraction diagrams and high T(c) values. We find high superconducting conducting critical transport current densities j(c) even for ultrafine modulated superlattices which proves the existence of nearly continuous YBa2Cu3O7 layers. The activation energy U is found to be constant or to have a linear temperature dependence over a wide temperature range.

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页码：135 / 140

页数：6

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