论文标题
旋转波的不对称散射行为取决于磁性涡流手性
Asymmetric scattering behaviors of spin wave dependent on magnetic vortex chirality
论文作者
论文摘要
在这封信中，在交叉形的铁磁系统中研究了由涡流手性引起的不对称自旋波散射行为。在系统中，发现了四种散射行为，1）根据涡旋核心的极性，2）背部散射（反射），具体取决于涡旋核心刚度，3）侧向偏转散射，取决于涡流循环的结构对称性，以及4）地球散射，依赖于Waveldeer，根据涡流循环的结构对称。第一个和第二个散射行为归因于与镁自旋转移扭矩效应相关的非线性拓扑镁旋转大厅效应，该效应具有磁岩勘探和应用值。
In this letter, an asymmetric spin wave scattering behaviors caused by vortex chirality are investigated in cross-shaped ferromagnetic system. In the system, four scattering behaviors are found, 1) asymmetric skew scattering, depending on the polarity of vortex core, 2) back scattering (reflection), depending on the vortex core stiffness, 3) side deflection scattering, depending on structural symmetry of the vortex circulation, and 4) geometrical scattering, depending on waveguide structure. The first and second scattering behaviors are attributed to nonlinear topological magnon spin Hall effect related to magnon spin-transfer torque effect, which has value for magnonic exploration and application.
