Magnetostatic modes and chaos in yttrium iron garnet films
Magnetostatic modes and chaos in yttrium iron garnet films
复制标题
钇铁石榴石薄膜中的静磁模式和混沌
DOI：
10.1063/1.349303
复制
发表时间：
1991
影响因子：
3.2
通讯作者：
F. Rachford
中科院分区：
文献类型：
--
作者：
T. Carroll;L. Pecora;F. Rachford
在铁磁共振实验中，钇铁石榴石中的非线性相互作用导致了复杂的低频信号。来自非线性动力学的几种方法已被用于测量诸如维数、李亚普诺夫指数等量，以表征由铁磁共振实验测量的复杂行为。研究发现，这些量可能比振荡频率等更常用的测量量更有助于理解钇铁石榴石中的相互作用。我们也使用非常简单的数值模型来说明哪些量在描述这些自旋波相互作用时最重要。
Nonlinear interactions in yttrium iron garnet cause complex, low‐frequency signals seen during ferromagnetic‐resonance experiments. Several methods from nonlinear dynamics have been used to measure quantities such as dimensions, Lyapunov exponents, and others, to characterize complex behavior that is measured by ferromagnetic resonance experiments. It is found that these quantities may be more useful in understanding the interactions in yttrium iron garnet than more commonly measured quantities such as oscillation frequency. Very simple numerical models are also used to suggest which quantities are most important in characterizing these spin‐wave interactions.