论文标题

铁磁共振中的两麦克农频弹性效应

Two-magnon frequency-pulling effect in ferromagnetic resonance

论文作者

Peria, W. K., Yu, H., Lee, S., Takeuchi, I., Crowell, P. A.

论文摘要

我们报告了由于两麦克农散射机制而导致的均匀铁磁共振模式与非均匀木元的杂交薄膜中的实验观察结果,从而导致对铁电磁共振的频率提出效应。如果未正确考虑,这种效果会导致铁磁共振场的依赖性差异,以换取不同的场取向。频率提取的效果是通过两麦克农散射扩大铁磁共振线的补充,可以使用相同的参数来计算。通过考虑两次频率转移这些均值,可以在拟合面内和垂直于平面谐振条件的数据中达到一致性。

We report the experimental observation in thin films of the hybridization of the uniform ferromagnetic resonance mode with nonuniform magnons as a result of the two-magnon scattering mechanism, leading to a frequency-pulling effect on the ferromagnetic resonance. This effect, when not properly accounted for, leads to a discrepancy in the dependence of the ferromagnetic resonance field on frequency for different field orientations. The frequency-pulling effect is the complement of the broadening of the ferromagnetic resonance lineshape by two-magnon scattering and can be calculated using the same parameters. By accounting for the two-magnon frequency shifts through these means, consistency is achieved in fitting data from in-plane and perpendicular-to-plane resonance conditions.

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