OSCILLATORY SUPERCONDUCTING TRANSITION-TEMPERATURE IN NB/GD MULTILAYERS

被引：366

作者：

JIANG, JS

DAVIDOVIC, D

REICH, DH

CHIEN, CL

机构：

[1] Department of Physics and Astronomy, Johns Hopkins University, Baltimore

来源：

PHYSICAL REVIEW LETTERS | 1995年 / 74卷 / 02期

关键词：

D O I：

10.1103/PhysRevLett.74.314

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The superconducting transition temperature Tc in Nb/Gd multilayers shows a pronounced nonmonotonic dependence on the ferromagnetic Gd layer thickness dGd for fixed Nb thickness dNb. For dNb=500 and 600 , the Tc oscillation occurs in the range 10≤dGd≤40 where the Gd ferromagnetism is well established. These results provide the first evidence for the predicted π phase in superconductor/ferromagnet multilayers where the order parameter in neighboring superconducting layers may have an intrinsic phase difference. © 1995 The American Physical Society.

引用

页码：314 / 317

页数：4

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