Flux pinning by magnetic dots with in-plane magnetization

被引：3
|
作者：
Van Bael, MJ [1 ]
Temst, K [1 ]
Van Look, L [1 ]
Bekaert, J [1 ]
Moshchalkov, VV [1 ]
Bruynseraede, Y [1 ]
机构：
[1] Katholieke Univ Leuven, Vaste Stof Fys & Magnetisme Lab, B-3001 Louvain, Belgium
来源：
PHYSICA B | 2000年 / 284卷
关键词：
artificial pinning arrays; flux pinning; magnetic dots;
D O I：
10.1016/S0921-4526(99)02209-7
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Flux pinning is studied in superconducting Pb films with a lattice of sub-micron Co dots. Matching anomalies are observed in the magnetization curves, corresponding to stable vortex configurations in the periodic pinning potential created by the lattice. By comparing magnetic dots (Co) with different stray field strengths and non-magnetic dots (Ge, Au), a pronounced enhancement of the pinning efficiency by the local stray field of the Co dots is demonstrated. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：893 / 894
页数：2
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