Dependence of proximity-induced supercurrent on junction length in multilayer-graphene Josephson junctions

被引：14
作者：
Kanda, A. [1 ,3 ]
Sato, T. [1 ]
Goto, H. [1 ,3 ]
Tomori, H. [1 ,3 ]
Takana, S. [1 ,3 ]
Ootuka, Y. [1 ]
Tsukagoshi, K. [2 ,3 ]
机构：
[1] Univ Tsukuba, Inst Phys, Tsukuba, Ibaraki 3058571, Japan
[2] NIMS, MANA, Tsukuba, Ibaraki 3050047, Japan
[3] Japan Sci & Technol Agcy, CREST JST, Kawaguchi, Saitama 3320012, Japan
来源：
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2010年 / 470卷 / 20期
关键词：
Graphene; Proximity effect; Supercurrent; Josephson junction; FILMS;
D O I：
10.1016/j.physc.2010.05.142
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We report experimental observation of the proximity-induced supercurrent in superconductor-multilayer graphene-superconductor junctions. We find that the supercurrent is a linearly decreasing function of the junction length (separation of the superconducting electrodes), which is quite different from the usual behavior of exponential dependence. We suggest that this behavior originates from the intrinsic large contact resistance between the multilayer and the superconducting electrodes. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：1477 / 1480
页数：4
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