AI 中文总结
针对现有磁性斯格明子驱动方法缺乏单粒子选择性的问题，本文提出声学镊子方案，利用空间扩展声学束实现单个斯格明子的确定性捕获与路由，为高精度拓扑自旋电子学提供非破坏性片上路径。
AI 中文摘要
当前驱动磁性斯格明子的方法大多是整体平移集合体，缺乏单粒子选择性。本文提出一种“声学镊子”，利用空间扩展的声学束确定性捕获并路由单个斯格明子。研究发现，空间受限的纵波携带非平凡声子自旋，诱导磁弹性场，其手性与声子自旋纹理锁定，产生极性选择性辐射力，不同于保守梯度力，可吸引斯格明子至局部声子自旋最大值。正交交叉束可形成可重构吸引点，用于绝热、确定性操控。本文的全局场-局域相互作用范式为高精度拓扑自旋电子学建立了非破坏性、片上的路径。
英文摘要
Current methods for driving magnetic skyrmions predominantly translate ensembles as a whole, lacking single-particle selectivity. Here, we propose an "acoustic tweezer" that deterministically traps and routes individual skyrmions using spatially extended acoustic beams. We reveal that spatially confined longitudinal waves carry nontrivial phonon spin, inducing a magnetoelastic field whose chirality is locked to the acoustic spin texture. This generates polarity-selective radiation forces, distinct from conservative gradient forces, that attract skyrmions to local phonon spin maxima. Intersecting orthogonal beams create reconfigurable attractive points for adiabatic, deterministic manipulation. Our global-field-local-interaction paradigm establishes a non-destructive, on-chip route for high-precision topological spintronics.
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