Tunable Graphene do Superconducting Quantum Interference Device

被引：60

作者：

Girit, Caglar ^{[1
,2
]}

Bouchiat, V. ^{[4
]}

Naamanth, O. ^{[1
,3
]}

Zhang, Y. ^{[1
]}

Crommie, M. F. ^{[1
,2
]}

Zetti, A. ^{[1
,2
]}

Siddiqi, I. ^{[1
,3
]}

机构：

[1] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA

[2] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA

[3] Univ Calif Berkeley, Quantum Nanoelect Lab, Berkeley, CA 94720 USA

[4] UJF, CNRS, Inst Neel, F-38042 Grenoble 9, France

来源：

NANO LETTERS | 2009年 / 9卷 / 01期

关键词：

D O I：

10.1021/nl802765x

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Graphene exhibits unique electrical properties on account of its reduced dimensionality and "relativistic" band structure. When contacted with two superconducting electrodes, graphene can support Cooper pair transport, resulting in the well-known Josephson effect. We report here the fabrication and operation of a two junction do superconducting quantum interference device (SQUID) formed by a single graphene sheet contacted with aluminum/palladium electrodes in the geometry of a loop. The supercurrent in this device can be modulated not only via an electrostatic gate but also by an applied magnetic field-a potentially powerful probe of electronic transport in graphene and an ultrasensitive platform for nanomagnetometry.

引用

页码：198 / 199

页数：2

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