论文标题
扭曲的范德华磁铁中的堆叠域壁坚
Stacking Domain Wall Magnons in Twisted van der Waals Magnets
论文作者
论文摘要
以BiLayer CRI $ _3 $为例，我们证明了Van der Waals Magnets中的堆叠结构域壁可以容纳一维（1D）磁通道，该通道的能量低于块状元音。有趣的是，某些磁通通道隐藏在磁性均匀的背景中，只能通过堆叠域壁的知识来推断。与限制在磁性域壁中的一维木蛋白相比，在外部扰动中，堆叠域壁中的1D磁棒更加稳定。我们表明，小角度扭曲的双层cri $ _3 $的轻松的Moiré超级晶格是堆叠域墙壁和主机互连的MoiréMagnonNetwork的自然实现。我们的工作揭示了堆叠域壁在了解范德华磁体的磁性特性中的重要性，并将堆叠工程的范围扩展到磁力动力学。
Using bilayer CrI$_3$ as an example, we demonstrate that stacking domain walls in van der Waals magnets can host one dimensional (1D) magnon channels, which have lower energies than bulk magnons. Interestingly, some magnon channels are hidden in magnetically homogeneous background and can only be inferred with the knowledge of stacking domain walls. Compared to 1D magnons confined in magnetic domain walls, 1D magnons in stacking domain walls are more stable against external perturbations. We show that the relaxed moiré superlattices of small-angle twisted bilayer CrI$_3$ is a natural realization of stacking domain walls and host interconnected moiré magnon network. Our work reveals the importance of stacking domain walls in understanding magnetic properties of van der Waals magnets, and extends the scope of stacking engineering to magnetic dynamics.
