Enhanced critical currents through field compensation with magnetic strips

被引：19
|
作者：
Morelle, M [1 ]
Moshchalkov, VV [1 ]
机构：
[1] Katholieke Univ Leuven, INPAC, Nanoscale Supercond & Magnetism Grp, B-3001 Heverlee, Belgium
来源：
APPLIED PHYSICS LETTERS | 2006年 / 88卷 / 17期
关键词：
D O I：
10.1063/1.2199468
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We have studied a system consisting of a superconducting Al strip placed close to a perpendicularly magnetized Co/Pd rectangle. The stray fields of the rectangle produce a nonhomogeneous magnetic field in the superconductor. These stray fields can efficiently compensate the self-field inside the current-carrying superconductor. We have observed a current-polarity dependence of the critical current. The compensation effects are strongly dependent on the current in the superconductor and also on the temperature. The studied configuration is easily tunable for a large range of applied currents. (c) 2006 American Institute of Physics.
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页数：3
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