论文标题
长距离手性相互作用驱动皮肤效应的磁阵列巨型微波灵敏度
Giant Microwave Sensitivity of Magnetic Array by Long-Range Chiral Interaction Driven Skin Effect
论文作者
论文摘要
在具有短距离手性相互作用的一维系统中观察到了非铁皮皮肤效应。通过流动波介导的远程手性相互作用也有利于能量的积累，但尚未表现出非热拓扑。在这里，我们发现波传播带来的强大干扰对积累有害。通过通过流动波阻尼抑制干扰，我们预测了在周期性的磁性纳米线阵列中通过薄磁性膜的自旋波策划的磁性纳米线中的磁激发的非热效果。通过弱的微波$ \simμ{\ rm t} $对电线的局部激发导致另一个边缘的旋转波幅度相当大，即对敏感的，非本地和非当型微波检测的显着功能。
Non-Hermitian skin effect was observed in one-dimensional systems with short-range chiral interaction. Long-range chiral interaction mediated by traveling waves also favors the accumulation of energy, but has not yet showed non-Hermitian topology. Here we find that the strong interference brought by the wave propagation is detrimental for accumulation. By suppression of interference via the damping of traveling waves, we predict the non-Hermitian skin effect of magnetic excitation in a periodic array of magnetic nanowires that are coupled chirally via spin waves of thin magnetic films. The local excitation of a wire at one edge by weak microwaves of magnitude $\sim μ{\rm T}$ leads to a considerable spin-wave amplitude at the other edge, i.e. a remarkable functionality useful for sensitive, non-local, and non-reciprocal detection of microwaves.
