Grain boundaries in high-Tc superconductors:: insights and improvements

被引：15

作者：

Mannhart, J ^{[1
]}

Bielefeldt, H ^{[1
]}

Goetz, B ^{[1
]}

Hilgenkamp, H ^{[1
]}

Schmehl, A ^{[1
]}

Schneider, CW ^{[1
]}

Schulz, RR ^{[1
]}

机构：

[1] Univ Augsburg, Inst Phys, Ctr Elect Correlat & Magnetism, D-86135 Augsburg, Germany

来源：

PHILOSOPHICAL MAGAZINE B-PHYSICS OF CONDENSED MATTER STATISTICAL MECHANICS ELECTRONIC OPTICAL AND MAGNETIC PROPERTIES | 2000年 / 80卷 / 05期

关键词：

D O I：

10.1080/01418630008221948

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The properties of grain boundaries play a decisive role in the understanding and design of numerous experiments, as well as for most applications of high-T-c superconductors. For basic reasons to be discussed, the physics of interfaces in high-T-c superconductors and in semiconductors are surprisingly closely related. As a consequence, the behaviour of interfaces in high-T-c superconductors is considerably richer and more exciting than in conventional metallic superconductors. Based on these considerations, we developed a model to describe the electronic behaviour of grain boundaries in high-T-c superconductors. Guided by this model, we were able to meet a long-standing challenge of high-T-c superconductivity and to increase the critical current densities of the grain boundaries by large factors.

引用

页码：827 / 834

页数：8

共 25 条

[21] SCALING BEHAVIOR OF YBA2CU3O7-DELTA THIN-FILM WEAK LINKS [J].