UHV compatible nanostructuring technique for mesoscopic hybrid devices:: application to superconductor/ferromagnet Josephson contacts

被引：4

作者：

Hoss, T

Strunk, C

Sürgers, C

Schönenberger, C

机构：

[1] Univ Basel, Inst Phys, CH-4065 Basel, Switzerland

[2] Univ Regensburg, Inst Expt & Angew Phys, D-93040 Regensburg, Germany

[3] Univ Karlsruhe, Inst Phys, D-76128 Karlsruhe, Germany

来源：

PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES | 2002年 / 14卷 / 03期

关键词：

nanostructuring; hybrid devices; Josephson contacts;

D O I：

10.1016/S1386-9477(01)00168-0

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We report on an ultra-high vacuum (UHV) compatible method for fabricating devices of sub-micrometer size by virtue of a non-organic evaporation mask of high thermal and mechanical stability. As an application we describe the superconducting properties of mesoscopic superconductor/normal-metal and superconductor/ferromagnet/superconductor hybrid structures. In particular, we report on the observation of the DC-Josephson effect in Nb/Cu/Co/Cu/Nb structures prepared in UHV. The Josephson coupling between the two superconductors through the very thin (5 nm) magnetic and metallic weak link is confirmed by the magnetic field dependence of the critical current I-c, which displays a Fraunhofer-like interference pattern. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：341 / 345

页数：5

共 15 条

[1] Transport in superconductor/ferromagnet/superconductor junctions dominated by interface resistance [J].

Bourgeois, O ;

Gandit, P ;

Sulpice, A ;

Chaussy, J ;

Lesueur, J ;

Grison, X .

PHYSICAL REVIEW B, 2001, 63 (06)

[2]

BUZDIN AI, 1991, JETP LETT+, V53, P321

[3] Thermostable trilayer resist for niobium lift-off [J].

Dubos, P ;

Charlat, P ;

Crozes, T ;

Paniez, P ;

Pannetier, B .

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B, 2000, 18 (01) :122-126

[4] FABRICATION AND MEASUREMENT OF A NB BASED SUPERCONDUCTING SINGLE-ELECTRON TRANSISTOR [J].

HARADA, Y ;

HAVILAND, DB ;

DELSING, P ;

CHEN, CD ;

CLAESON, T .

APPLIED PHYSICS LETTERS, 1994, 65 (05) :636-638

[5] Nonorganic evaporation mask for superconducting nanodevices [J].

Hoss, T ;

Strunk, C ;

Schönenberger, C .

MICROELECTRONIC ENGINEERING, 1999, 46 (1-4) :149-152

[6] Multiple Andreev reflection and giant excess noise in diffusive superconductor/normal-metal/superconductor junctions [J].

Hoss, T ;

Strunk, C ;

Nussbaumer, T ;

Huber, R ;

Staufer, U ;

Schönenberger, C .

PHYSICAL REVIEW B, 2000, 62 (06) :4079-4085

[7] OSCILLATORY SUPERCONDUCTING TRANSITION-TEMPERATURE IN NB/GD MULTILAYERS [J].

JIANG, JS ;

DAVIDOVIC, D ;

REICH, DH ;

CHIEN, CL .

PHYSICAL REVIEW LETTERS, 1995, 74 (02) :314-317

[8] Superconducting transition in Nb/Gd/Nb trilayers [J].

Jiang, JS ;

Davidovic, D ;

Reich, DH ;

Chien, CL .

PHYSICAL REVIEW B, 1996, 54 (09) :6119-6121

[9]

KULIK IO, 1975, JETP LETT+, V21, P96

[10] Magnetism and superconductivity of Fe/Nb/Fe trilayers [J].

Muhge, T ;

Westerholt, K ;

Zabel, H ;

Garifyanov, NN ;

Goryunov, YV ;

Garifullin, IA ;

Khaliullin, GG .

PHYSICAL REVIEW B, 1997, 55 (14) :8945-8954

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