A numerical study of dc Josephson effect in SNS junctions of d-wave superconductors

被引：3
|
作者：
Asano, Y [1 ]
机构：
[1] Hokkaido Univ, Dept Appl Phys, Kita Ku, Sapporo, Hokkaido 0608628, Japan
来源：
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2002年 / 367卷 / 1-4期
关键词：
Josephson current; mesoscopic fluctuations; zero-energy states;
D O I：
10.1016/S0921-4534(01)00999-6
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We numerically study the de Josephson current in d-wave superconductor/normal metal/d-wave superconductor junctions by using the recursive Green function method. The Josephson current is sensitive to the orientation angle between the crystalline axis of the high-T-c superconductors and the normal of the junction interface. It was pointed out that the ensemble average of the Josephson current, (J), vanishes when the orientation angle is pi/4 and the normal metal is in the diffusive transport regime. We show in this paper that (J) disappears even when the normal metal is in the quasi-ballistic transport regime. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：157 / 160
页数：4
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