论文标题
Moiré磁铁
Moiré magnets
论文作者
论文摘要
我们介绍了一个通用框架，以使用Continuum Field理论来研究二维范德华磁铁的Moiré结构。形式主义消除了准膜状性，并可以充分理解磁性结构及其激发。特别是，我们详细分析了蜂窝晶状体上NéelAntiferromagnets的双层。获得了具有非共线扭曲相的丰富相图，并进一步计算自旋波。还提出了直接扩展到锯齿形抗铁磁铁和铁磁体的延伸。我们预计提出的结果和形式主义会导致基础研究和实验的广泛应用。
We introduce a general framework to study moiré structures of two-dimensional Van der Waals magnets using continuum field theory. The formalism eliminates quasiperiodicity and allows a full understanding of magnetic structures and their excitations. In particular, we analyze in detail twisted bilayers of Néel antiferromagnets on the honeycomb lattice. A rich phase diagram with non-collinear twisted phases is obtained, and spin waves are further calculated. Direct extensions to zig-zag antiferromagnets and ferromagnets are also presented. We anticipate the results and formalism presented to lead to a broad range of applications to both fundamental research and experiments.
