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Breaking the topological protection of target skyrmions by the excitation of spin wave modes under microwave magnetic field
Journal of Magnetism and Magnetic Materials ( IF 2.5 ) Pub Date : 2021-09-07 , DOI: 10.1016/j.jmmm.2021.168521
Xiaochen Shen 1 , Rongzhi Zhao 2, 3 , Lianze Ji 2, 3 , Chenglong Hu 2, 3 , Wenling Ren 3 , Wenchao Chen 3 , Yixing Li 2 , Jian Zhang 3 , Xuefeng Zhang 2, 3 , Xinglong Dong 1
Affiliation  

Target skyrmions have been attracting intensive attention as the building block of spintronic devices. However, due to the topological protection of these magnetic textures, an extra driving force is needed to realize the transition between different magnetic textures. Herein, we achieve the transition of these magnetic textures with the breaking of topological protection by applying perpendicular microwave magnetic field, which is assisted by the excitation of breathing modes and hybridized modes (combination of breathing modes and radial spin wave modes). Another distinct resonance mode originating from the interaction of hybridized mode and breathing mode is also found, which is excited by isolated annular domain in different positions of nanodisks. Our results provide an insight for the understanding of complex dynamic behaviors in magnetic textures and the designing of spintronics devices.



中文翻译:

微波磁场下自旋波模式激发打破目标斯格明子的拓扑保护

目标斯格明子作为自旋电子器件的构建块一直受到广泛关注。然而,由于这些磁纹理的拓扑保护,需要额外的驱动力来实现不同磁纹理之间的过渡。在这里,我们通过施加垂直微波磁场来实现这些磁性结构的转变,破坏拓扑保护,并辅以呼吸模式和混合模式(呼吸模式和径向自旋波模式的组合)的激发。还发现了另一种源自混合模式和呼吸模式相互作用的独特共振模式,它由纳米盘不同位置的孤立环形域激发。

更新日期:2021-09-12
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