Dissipation of the spin wave energy in magnetic multilayer films
Dissipation of the spin wave energy in magnetic multilayer films
复制标题
磁性多层薄膜中自旋波能量的耗散
DOI：
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发表时间：
2000
期刊：
影响因子：
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通讯作者：
S. S. Kidyaev
中科院分区：
文献类型：
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作者：
A. Zyuzin;A. Bazhanov;S. N. Sabaev;S. S. Kidyaev
结果表明，驻自旋波穿透高阻尼层是驻自旋波能量耗散的途径之一。由于该层的自旋波模式的线展宽随着模式指数的增加而增加，并且可能比与具有低阻尼层相关的自然线宽度大得多。发现自旋波模式的线宽是各向异性的，这是由于自旋波在高阻尼层中的穿透深度与外磁场相对于薄膜的方向有关。提出了与实验数据吻合的理论模型。
It is shown that the penetration of standing spin waves into a layer with high damping is one of the channels of energy dissipation of these waves. The line broadening of spin wave modes due to this layer increases with the mode index and may be much larger than the natural linewidth associated with a layer having low damping. The linewidths of spin wave modes are found to be anisotropic, which is due to the dependence of the penetration depth of spin waves into the high-damping layer on the orientation of the external magnetic field with respect to the film. A theoretical model is proposed, which is consistent with the experimental data.