论文标题
扭曲的Moiré晶格中的菌株诱导的准无维通道
Strain induced quasi-unidimensional channels in twisted moiré lattices
论文作者
论文摘要
我们研究了由蜂窝晶格组成的Moiré系统中菌株的影响。我们阐明在扭曲的双层系统中形成几乎完美的一维Moiré图案。这种模式的形成是扭曲与应变之间相互作用的结果，这导致了相互空间单位单元的崩溃。作为这种崩溃的标准，我们发现两个量与材料特定的泊松比之间有一个简单的关系。诱导的一维行为的特征是两个，通常不一致的周期性。我们的结果为在低角度扭曲的双层石墨烯系统和扭曲的双层迪卡生中观察到的一维通道的复杂模式提供了解释。我们的发现可以应用于任何六角形扭曲的Moiré图案，并且很容易扩展到其他几何形状。
We study the effects of strain in moiré systems composed of honeycomb lattices. We elucidate the formation of almost perfect one-dimensional moiré patterns in twisted bilayer systems. The formation of such patterns is a consequence of an interplay between twist and strain which gives rise to a collapse of the reciprocal space unit cell. As a criterion for such collapse we find a simple relation between the two quantities and the material specific Poisson ratio. The induced one dimensional behavior is characterized by two, usually incommensurate, periodicities. Our results offer explanations for the complex patterns of one-dimensional channels observed in low angle twisted bilayer graphene systems and twisted bilayer dicalcogenides. Our findings can be applied to any hexagonal twisted moiré pattern and can be easily extended to other geometries.
