Fabrication of ultrashort graphene Josephson junctions

被引：13

作者：

Tomori, H. ^{[1
,3
]}

Kanda, A. ^{[1
,3
]}

Goto, 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, MARA, 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.2010.05.146

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Graphene is a single layer of graphite. Graphene is expected to exhibit the relativistic Josephson effects, when ballistic transport is realized in it. Here, we report a method to fabricate ultrashort graphene Josephson junctions with length as short as several tens of nm, which is much shorter than the estimated mean free path of the graphene film after the junction fabrication processes. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：1492 / 1495

页数：4

共 20 条

[1] A self-consistent theory for graphene transport [J].

Adam, Shaffique ;

Hwang, E. H. ;

Galitski, V. M. ;

Das Sarma, S. .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2007, 104 (47) :18392-18397

[2] Specular andreev Reflection in graphene [J].

Beenakker, C. W. J. .

PHYSICAL REVIEW LETTERS, 2006, 97 (06)

[3] Temperature-dependent transport in suspended graphene [J].

Bolotin, K. I. ;

Sikes, K. J. ;

Hone, J. ;

Stormer, H. L. ;

Kim, P. .

PHYSICAL REVIEW LETTERS, 2008, 101 (09)

[4] Intrinsic and extrinsic performance limits of graphene devices on SiO2 [J].

Chen, Jian-Hao ;

Jang, Chaun ;

Xiao, Shudong ;

Ishigami, Masa ;

Fuhrer, Michael S. .

NATURE NANOTECHNOLOGY, 2008, 3 (04) :206-209

[5] OFFSET MASKS FOR LIFT-OFF PHOTOPROCESSING [J].

DOLAN, GJ .

APPLIED PHYSICS LETTERS, 1977, 31 (05) :337-339

[6] Josephson current and multiple Andreev reflections in graphene SNS junctions [J].

Du, Xu ;

Skachko, Ivan ;

Andrei, Eva Y. .

PHYSICAL REVIEW B, 2008, 77 (18)

[7] Superconducting proximity effect through graphene and graphite films [J].

Hayashi, Masahiko ;

Yoshioka, Hideo ;

Kanda, Akinobu .

INTERNATIONAL SYMPOSIUM ON ADVANCED NANODEVICES AND NANOTECHNOLOGY, 2008, 109

[8] Bipolar supercurrent in graphene [J].

Heersche, Hubert B. ;

Jarillo-Herrero, Pablo ;

Oostinga, Jeroen B. ;

Vandersypen, Lieven M. K. ;

Morpurgo, Alberto F. .

NATURE, 2007, 446 (7131) :56-59

[9] Simple and controlled fabrication of nanoscale gaps using double-angle evaporation [J].

Kanda, A ;

Wada, M ;

Hamamoto, Y ;

Ootuka, Y .

PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, 2005, 29 (3-4) :707-711

[10] Experimental evidence for giant vortex states in a mesoscopic superconducting disk [J].

Kanda, A ;

Baelus, BJ ;

Peeters, FM ;

Kadowaki, K ;

Ootuka, Y .

PHYSICAL REVIEW LETTERS, 2004, 93 (25)

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