Insulator-superconductor transition in 3D granular Al-Ge films

被引：136

作者：

Gerber, A

Milner, A

Deutscher, G

Karpovsky, M

Gladkikh, A

机构：

[1] Raymond and Beverly Sackler Faculty of Exact Sciences, School of Physics and Astronomy, Tel Aviv University, Tel Aviv, 69978, Ramat Aviv

来源：

PHYSICAL REVIEW LETTERS | 1997年 / 78卷 / 22期

关键词：

D O I：

10.1103/PhysRevLett.78.4277

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report the results of high magnetic field study of granular 3D Al-Ge and demonstrate that intragranular superconductivity leads in truly insulating samples (with an exponentially diverging normal state resistivity), either to a global superconducting phase coherent state, or to a ''superconductor-insulator'' state with Cooper pairs totally localized within individual grains, depending on the strength of the intergranular Josephson coupling.

引用

页码：4277 / 4280

页数：4

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