论文标题
关于跨Rux层的非共线化磁化耦合的起源
On the origin of noncollinear magnetization coupling across RuX layers
论文作者
论文摘要
我们提出了一个简单的原子模型，用于描述具有与铁磁原子（例如Fe）的RU制成的混合间隔层的磁性多层耦合。与以前的分析和微磁模型相反，这些模型通过耦合常数中的侧向波动来解释非共线耦合，呈现的模型解释了垫片层中所有三个空间维度的原子 - 原子耦合。新模型能够准确预测宏观双线性和生物偶联常数对间隔层组成和厚度的依赖性，显示出比侧向透露模型更好的定量一致性。此外，它即使对于无限坚硬的铁磁层，它也可以预测非共线耦合，这超出了先前模型的预测。
We present a simple atomistic model for the description of noncollinear coupling in magnetic multilayers with hybrid spacer layers made of Ru alloyed to ferromagnetic atoms such as Fe. In contrast to previous analytical and micromagnetic models that explain the noncollinear coupling by means of lateral fluctuations in the coupling constant, the presented model accounts for atom-atom coupling in all three spatial dimensions within the spacer layer. The new model is able to accurately predict the dependence of the macroscopic bilinear and biquadratic coupling constants on the spacer-layer composition and thickness, showing much better quantitative agreement than lateral-fluctuation models. Moreover, it predicts noncollinear coupling even for infinitely stiff ferromagnetic layers which goes beyond the predictions of previous models.
