Unconventional current-phase relations in YBCO dc-SQUIDs

被引:2
|
作者
Charlebois, SA [1 ]
Lindström, T
Tzalenchuk, AY
Ivanov, Z
Claeson, T
机构
[1] Chalmers Univ Technol, Quantum Device Phys Lab, Dept Microtechnol & Nanosci, SE-41296 Gothenburg, Sweden
[2] Univ Gothenburg, SE-41296 Gothenburg, Sweden
[3] Natl Phys Lab, Teddington TW11 0LW, Middx, England
关键词
Josephson junction; grain boundary; current-phase relation; dc-SQUIDs;
D O I
10.1016/j.physc.2004.03.166
中图分类号
O59 [应用物理学];
学科分类号
摘要
The predominant d-wave pairing symmetry in high temperature superconductors allows for a variety of current-phase relations (CPR) in Josephson junctions. In this presentation we report on direct experimental observations of the effects of non-sinusoidal CPR in YBCO dc-SQUIDs made with submicron 0/45degrees bicrystal junctions. We also present the effect of such CPR on the extrama positions of the critical current versus magnetic field measurements. (C) 2004 Published by Elsevier B.V.
引用
收藏
页码:926 / 927
页数:2
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