AI 中文总结
该研究提出磁子的散射诱导层霍尔效应，其源于异质界面非互易偶极散射，可通过磁场调控，在常规磁性异质结构中获约6°霍尔角，建立了散射驱动的层霍尔效应新范式。
AI 中文摘要
层霍尔效应此前被唯一归因于层锁定的贝里曲率，这为其在常规磁体中实现构成了根本性障碍。本文报道了玻色型激发（即磁子）的一种根本上不同的层霍尔效应，其仅起源于异质界面处的非互易偶极散射，从而将该现象与几何相位机制解耦。利用微观散射理论，我们证明纵向温度梯度会驱动磁性薄膜上方纳米线中相反的横向热霍尔电流，其方向可通过外加磁场完全重构。该效应在常规磁性异质结构中产生约6°的显著霍尔角，无需拓扑工程。我们的发现建立了散射驱动的层霍尔效应范式，可扩展至费伦子和极性声子，并预测该霍尔响应在常规磁性异质结构中易于检测。
英文摘要
The layer Hall effect has been exclusively attributed to layer-locked Berry curvature, posing a fundamental barrier to its realization in conventional magnets. Here we report a fundamentally distinct layer Hall effect for bosonic excitations, i.e., magnons, which originates solely from non-reciprocal dipolar scattering at heterointerfaces, thereby decoupling the phenomenon from geometric-phase mechanisms. Using a microscopic scattering theory, we demonstrate that a longitudinal temperature gradient drives opposite transverse thermal Hall currents in a nanowire atop a magnetic film, with the direction fully reconfigurable by the applied magnetic field. The effect yields a significant Hall angle of $\sim 6^{\circ}$ in conventional magnetic heterostructures, eliminating the need for topological engineering. Our findings establish a scattering-driven paradigm for layer Hall effect, extendable to ferrons and polar phonons, and predict a Hall response that is readily detectable in conventional magnetic heterostructures.
Comments7 pages, 4 figures
