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研究了用磁控溅射法制备的Ｎｉ８１ Ｆｅ１９／Ｃｒ８２Ａｌ１８ 双层膜中的交换耦合．样品的室温矫顽力与１／ｔ３／２ＦＭ （ｔＦＭ 为磁性层的厚度）成线性关系，从而表明在Ｎｉ８１Ｆｅ１９／Ｃｒ８２Ａｌ１８ 中交换耦合为铁磁／反铁磁界面的随机相互作用．另外还讨论了反铁磁层厚度对交换偏置的影响
The exchange coupling in Ni81 Fe19 / Cr82Al18 bilayers prepared by magnetron sputtering was studied. The room temperature coercivity of the sample is linear with 1 / t3 / 2FM (tFM is the thickness of the magnetic layer), indicating a stochastic interaction that is exchange-coupled into a ferromagnetic / antiferromagnetic interface in Ni81Fe19 / Cr82Al18. The effect of anti-ferromagnetic layer thickness on the switching bias is also discussed