论文标题
具有各种拓扑电荷的天空结构中的自旋波
Spin waves in skyrmionic structures with various topological charges
论文作者
论文摘要
在拓扑不同的天空纹理中研究了平衡性能和局部磁弹性激发。根据其涡旋和晶体的对称性来解释结构的观察形状及其在晶格上的方向。根据它们之间的能量差异，可以理解不同纹理与它们的歼灭之间的变化。圆柱体对称结构的角动量自旋特征量特征在变形的自旋构型中组合在一起，从而避免了磁杆光谱中的穿越。计算了高敏纹理对均匀外部磁场的敏感性，这表明由于角动量特征模量之间的杂交，大量模式被检测到可检测到。这些发现应通过实验和数值模拟来观察扭曲的天空结构中的自旋波，从而扩大了它们在宏伟设备中可能应用的范围。
Equilibrium properties and localised magnon excitations are investigated in topologically distinct skyrmionic textures. The observed shape of the structures and their orientation on the lattice is explained based on their vorticities and the symmetry of the crystal. The transformation between different textures and their annihilation as a function of magnetic field is understood based on the energy differences between them. The angular momentum spin-wave eigenmodes characteristic of cylindrically symmetric structures are combined in the distorted spin configurations, leading to avoided crossings in the magnon spectrum. The susceptibility of the skyrmionic textures to homogeneous external fields is calculated, revealing that a high number of modes become detectable due to the hybridization between the angular momentum eigenmodes. These findings should contribute to the observation of spin waves in distorted skyrmionic structures via experiments and numerical simulations, widening the range of their possible applications in magnonic devices.
