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arXiv 1702.05041cond-mat.mes-hall
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不同几何形状磁振子结构的磁化动力学:界面、缺口和波导

Magnetization dynamics in magnonic structures with different geometries: interfaces, notches and waveguides

M. Mansurova, J. von der Haar, J. Panke, Jakob Walowski, Henning Ulrichs, M. Münzenberg

摘要:

二十年前超快磁化动力学的发现导致了各种各样的实验技术来探索具有高时间分辨率的磁性材料中的现象。本文研究了自旋波包在不同磁子晶体连续磁膜界面上的宽带激发。类似于拓扑带绝缘体表面上的受保护的导电状态,这些界面表现出表面自旋波模式,该模式从晶体传播到连续膜中。传播距离取决于所施加的磁场的方向以及晶体的表面几何形状。

英文摘要:

The discovery of the ultrafast magnetization dynamics twenty years ago has led to a broad variety of experimental techniques to explore phenomena in magnetic materials with high temporal resolution. In the present article we present a study dealing with broadband excitation of spin-wave packets at different magnonic crystal continuous magnetic film interfaces. Similar to protected conducting states on the surfaces of topological band insulators, these interfaces exhibit surface spin-wave modes that propagate out of the crystal into the continuous film. The propagation distance depends on the direction of the applied magnetic field as well as the surface geometry of the crystal.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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