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Spin wave reflection from semi-infinite magnonic crystals with diffuse interfaces

机译:具有扩散界面的半无限大镁铁晶体的自旋波反射

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摘要

The frequency dependence of the coefficient of spin wave reflection from a semi-infinite magnonic crystal with a periodically modulated value of the uniaxial anisotropy and a finite thickness of interfaces has been investigated, assuming a linear distribution of the anisotropy value in the interfaces. The analysis shows that the performance of magnonic devices employing magnonic crystals as a filtering element can degrade as the thickness of interfaces increases, e.g. due to the process of diffusion between constituent layers of the magnonic crystals.
机译:假设界面上各向异性值呈线性分布,研究了半无限大自旋磁晶体的自旋波反射系数的频率依赖性,该晶体具有周期性调制的单轴各向异性值和有限的界面厚度。分析表明,采用强晶晶体作为过滤元件的强磁器件的性能会随着界面厚度的增加而降低,例如,随着界面厚度的增加而降低。归因于镁铝晶体组成层之间的扩散过程。

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