Controllable π SQUID

被引：27

作者：

Baselmans, JJA

van Wees, BJ

Klapwijk, TM

机构：

[1] Univ Groningen, Dept Appl Phys, NL-9747 AG Groningen, Netherlands

[2] Univ Groningen, Ctr Mat Sci, NL-9747 AG Groningen, Netherlands

[3] Delft Univ Technol, Dept Appl Phys, NL-2628 CJ Delft, Netherlands

[4] Delft Univ Technol, DIMES, NL-2628 CJ Delft, Netherlands

来源：

APPLIED PHYSICS LETTERS | 2001年 / 79卷 / 18期

关键词：

D O I：

10.1063/1.1414304

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have fabricated and studied a promising kind of direct current superconducting quantum interference device (dc-SQUID) in which the magnitude and sign of the critical current of the individual Josephson junctions can be controlled by additional voltage probes connected to the junctions. We show that the amplitude of the voltage oscillations of the SQUID as a function of the applied magnetic field can be tuned and that the phase of the oscillations can be switched between 0 and pi in the temperature range of 0.1-4.2 K using a suitable control voltage. This is equivalent to the external application of (n+1/2) flux quantum. (C) 2001 American Institute of Physics.

引用

页码：2940 / 2942

页数：3

共 21 条

[1] Nonequilibrium supercurrent transport in controllable superconductor-normal-metal-superconductor junctions
Baselmans, JJA
van Wees, BJ
Klapwijk, TM
[J]. PHYSICAL REVIEW B, 2001, 63 (09):
[2] Reversing the direction of the supercurrent in a controllable Josephson junction
Baselmans, JJA
Morpurgo, AF
van Wees, BJ
Klapwijk, TM
[J]. NATURE, 1999, 397 (6714) : 43 - 45
[3] Clarke J, 1996, NATO ADV SCI I E-APP, V329, P1
[4] Cryot M., 1992, INTRO SUPERCONDUCTIV
[5] Josephson critical current in a long mesoscopic S-N-S junction -: art. no. 064502
Dubos, P
Courtois, H
Pannetier, B
Wilhelm, FK
Zaikin, AD
Schön, G
[J]. PHYSICAL REVIEW B, 2001, 63 (06)
[6] 1/3-shot-noise suppression in diffusive nanowires
Henny, M
Oberholzer, S
Strunk, C
Schönenberger, C
[J]. PHYSICAL REVIEW B, 1999, 59 (04): : 2871 - 2880
[7] Observation of supercurrent enhancement in SNS junctions by nonequilibrium injection into supercurrent carrying bound Andreev states
Kutchinsky, J
Taboryski, R
Sorensen, CB
Hansen, JB
Lindelof, PE
[J]. PHYSICAL REVIEW LETTERS, 1999, 83 (23) : 4856 - 4859
[8] Hot electron tunable supercurrent
Morpurgo, AF
Klapwijk, TM
van Wees, BJ
[J]. APPLIED PHYSICS LETTERS, 1998, 72 (08) : 966 - 968
[9] Local suppression of Josephson currents in niobium/two-dimensional electron gas/niobium structures by an injection current
Neurohr, K
Schäpers, T
Malindretos, J
Lachenmann, S
Braginski, AI
Lüth, H
Behet, M
Borghs, G
Golubov, AA
[J]. PHYSICAL REVIEW B, 1999, 59 (17): : 11197 - 11200
[10] Energy redistribution between quasiparticles in mesoscopic silver wires
Pierre, F
Pothier, H
Esteve, D
Devoret, MH
[J]. JOURNAL OF LOW TEMPERATURE PHYSICS, 2000, 118 (5-6) : 437 - 445

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