Proximity and coupling effects in superconductor/ferromagnet multilayers

被引:24
作者
Chien, CL
Jiang, JS
Xiao, JQ
Davidovic, D
Reich, DH
机构
[1] Department of Physics and Astronomy, Johns Hopkins University, Baltimore
[2] Materials Science Division, Argonne National Lab., Argonne
[3] Department of Physics and Astronomy, University of Delaware, Newark
[4] Department of Physics, Harvard University, Cambridge
关键词
D O I
10.1063/1.364545
中图分类号
O59 [应用物理学];
学科分类号
摘要
New features in superconductor/fenomagnet multilayers have been observed. A nonmonotonic dependence of the superconducting T-c on the ferromagnetic layer thickness, due to the coupling across a thin magnetic layer, has been observed in both Nb/Gd multilayers and trilayers. The results are consistent with those of the predicted pi-phase coupling. Effects on superconductivity due to insulating ferromagnetic layers have been observed in NbN/GdN multilayers, where the main pair-breaking effect is that of the ferromagnetic walls. The insulating ferromagnetic layers also give rise to very large superconducting critical fields. (C) 1997 American Institute of Physics.
引用
收藏
页码:5358 / 5363
页数:6
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