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.
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页码：2940 / 2942
页数：3
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