标题： YIG/CoFeB 双层磁子二极管 显示英文标题

标题： YIG/CoFeB bilayer magnonic diode

摘要： 我们展示了一种基于钇铁石榴石（YIG）和钴铁硼（CoFeB）双层结构的磁子二极管。 该双层结构表现出显著的非互易自旋波传播，这是由偶极耦合以及两层的磁性特性所实现的。 YIG层提供低阻尼和高效的自旋波传播，而CoFeB层引入了强磁各向异性，这对于实现二极管功能至关重要。 实验结果得到数值模拟的支持，显示磁静力表面自旋波（MSSW）的单向传播，显著抑制了反向散射波。 通过波矢分辨和微聚焦布里渊光散射测量确认了这种行为，并得到数值模拟的支持。 所提出的YIG/SiO$_2$/CoFeB双层磁子二极管证明了利用非互易自旋波动力学实现功能性磁子器件的可行性，为节能的基于波的信号处理技术铺平了道路。 显示英文摘要

摘要： We demonstrate a magnonic diode based on a bilayer structure of Yttrium Iron Garnet (YIG) and Cobalt Iron Boron (CoFeB). The bilayer exhibits pronounced non-reciprocal spin-wave propagation, enabled by dipolar coupling and the magnetic properties of the two layers. The YIG layer provides low damping and efficient spin-wave propagation, while the CoFeB layer introduces strong magnetic anisotropy, critical for achieving diode functionality. Experimental results, supported by numerical simulations, show unidirectional propagation of Magnetostatic Surface Spin Waves (MSSW), significantly suppressing backscattered waves. This behavior was confirmed through wavevector-resolved and micro-focused Brillouin Light Scattering measurements and is supported by numerical simulations. The proposed YIG/SiO$_2$/CoFeB bilayer magnonic diode demonstrates the feasibility of leveraging non-reciprocal spin-wave dynamics for functional magnonic devices, paving the way for energy-efficient, wave-based signal processing technologies.