论文标题
Rkky在磁性多层中控制的振荡交换偏见
Oscillatory Exchange Bias Controlled by RKKY in Magnetic Multilayers
论文作者
论文摘要
铁磁/抗铁磁双层与正常的金属/铁磁双层相连，形成F*/af/n/f阀。选择N间隔厚度使其在外部磁层之间介导强大的间接交换（RKKY），该磁层之间的强度/方向取决于N厚度和转换F的方向。该系统对F*/AF交换偏置的强烈调节表现出强度的强度调节，并在互换中旋转了互换的振动型在互换中，互换了互换的互换。该效果被解释为是由于F*/AF接口的直接交换接近效应的抗磁磁性层中发生的叠加以及从F穿透AF的间接rkky交换。通过N的调制，通过F*/AF BIAS的强度表示，在第一个RKKY峰值达到400％的强度。
Ferromagnetic/antiferromagnetic bilayers are interfaced with normal metal/ferromagnetic bilayers to form F*/AF/N/F valves. The N-spacer thickness is chosen such that it mediates strong indirect exchange (RKKY) between the outer magnetic layers, which varies in strength/direction depending on the N thickness and in direction on switching F. The system exhibits a strong modulation of the F*/AF exchange bias, oscillating in strength syncronously with the oscillation in the interlayer RKKY exchange across the normal metal spacer. The effect is explained as due to a superposition taking place within the antiferromagnetic layer of the direct-exchange proximity effect from the F*/AF interface and the indirect RKKY exchange from F penetrating AF via N. The modulation, expressed via the strength of the F*/AF bias field, reaches 400% at the first RKKY peak.
