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近年来,磁性夹层结构和多层膜中相邻磁层间的层间耦合受到各国科学家的广泛重视,一方面,在于多层膜中由反铁磁耦合导致的巨磁电阻效应比传统的坡莫合金要大1～2个量级,在磁头材料和磁电阻敏感器件等领域具有重要的应用价值;另一方面,在于它包含诸如传导电子间交换相互作用等深刻的物理问题.与层间耦合相关联的磁光效应振荡也引起了人们浓厚的兴趣,在夹层结构Fe/Cu/Fe和Co/Au/Co中发现磁光效应随着中间非磁层厚度的变化作周期性的振荡,且振荡周期与层间耦合的振荡周期相同;但是Katayama等人在Fe/Ag,Au/Fe
In recent years, interlayer coupling between magnetic sandwich structures and adjacent magnetic layers in multilayers has drawn much attention from scientists in many countries. On the one hand, the giant magnetoresistance effect caused by the antiferromagnetic coupling in multilayers is higher than that of the traditional slope Mo alloy to be 1 or 2 orders of magnitude, in the magnetic head and magnetoresistive sensors and other fields has an important application value; the other hand, it contains such as the exchange of electronic interactions between the deep physical problems such as interaction with the interlayer Coupling associated magneto-optical effect oscillation also aroused a strong interest in the sandwich structure of Fe / Cu / Fe and Co / Au / Co magneto-optical effect found in the middle of non-magnetic layer thickness changes periodically for oscillation, And the oscillation period is the same as the oscillation period of the inter-layer coupling; however, Katayama et al. Found that in Fe / Ag, Au / Fe