论文标题
在含有磁性纳米簇的铁磁链中自旋波的局部激发和散射
Localized excitations and scattering of spin waves in ferromagnetic chains containing magnetic nanoclusters
论文作者
论文摘要
各向异性的一维铁磁体中包含任意大小的自旋簇的局部激发的光谱正好在离散takeo-homma模型的框架内找到。根据自旋纳米簇的稳定性的边界，取决于它们的大小以及交换和铁磁性的各向异性参数。旋转波散射针对纳米簇的问题是解决了其反射和传输系数的明确分析表达式。提出了由弱相互作用的磁分子纳米簇和具有揭示的动态特性组成的超物质模型。
The spectrum of localized excitations in an anisotropic one-dimensional ferromagnet containing a spin cluster of arbitrary size is found exactly within the framework of the discrete Takeno-Homma model. The boundaries of stability of spin nanoclusters are determined, depending on their size, and the exchange and the anisotropy parameter of the ferromagnet. The problem of the spin waves scattering against nanoclusters is solved and explicit analytical expressions for their reflection and transmission coefficients are obtained. A model of a metamaterial consisting of weakly interacting magnetic molecular nanoclusters and possessing revealed dynamic properties is proposed.
