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Magnetic texture based magnonics
Physics Reports ( IF 30.0 ) Pub Date : 2021-01-06 , DOI: 10.1016/j.physrep.2020.12.004
Haiming Yu , Jiang Xiao , Helmut Schultheiss

The spontaneous magnetic orders arising in ferro-, ferri- and antiferromagnets stem from various magnetic interactions. Depending on the interplay and competition among the Heisenberg exchange interaction, Dzyaloshinskii–Moriya exchange interaction, magnetic dipolar interaction and crystal anisotropies, a great variety of magnetic textures may be stabilized, such as magnetic domain walls, vortices, Skyrmions and spiral helical structures. While each of these spin textures responds to external forces in a specific manner with characteristic resonance frequencies, they also interact with magnons, the fundamental collective excitation of the magnetic order, which can propagate in magnetic materials free of charge transport and therefore with low energy dissipation. Recent theories and experiments found that the interplay between spin waves and magnetic textures is particularly interesting and rich in physics. In this review, we introduce and discuss the theoretical framework of magnons living on a magnetic texture background, as well as recent experimental progress in the manipulation of magnons via magnetic textures. The flexibility and reconfigurability of magnetic textures are discussed regarding the potential for applications in information processing schemes based on magnons.



中文翻译:

基于磁性纹理的大人

在铁磁体,亚铁磁体和反铁磁体中产生的自发磁阶来自于各种磁相互作用。根据海森堡交换相互作用,Dzyaloshinskii-Moriya交换相互作用,磁偶极相互作用和晶体各向异性之间的相互作用和竞争,可能稳定了多种磁性结构,例如磁畴壁,涡旋,Skyrmions和螺旋螺旋结构。尽管这些自旋纹理中的每一个都以特征共振频率以特定方式响应外力,但它们也与磁振子相互作用,磁振子是磁阶的基本集体激励,可以在无电荷传输的磁性材料中传播,因此能量消耗低。最近的理论和实验发现,自旋波与磁性纹理之间的相互作用特别有趣,并且具有丰富的物理性质。在这篇综述中,我们将介绍和讨论生活在磁性纹理背景下的马农的理论框架,以及通过磁纹理操纵马农的最新实验进展。讨论了磁性纹理的灵活性和可重新配置性,有关其在基于磁振子的信息处理方案中的应用潜力。

更新日期:2021-03-16
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