论文标题
伪造动力学和真正的非均匀紧张的莫伊尔模式中的真正的非亚洲浆果阶段
Layer pseudospin dynamics and genuine non-Abelian Berry phase in inhomogeneously strained moiré pattern
论文作者
论文摘要
长波长moiré模式的周期性经常被范德华分层结构的制造中引入的不均匀菌株破坏。我们提出了一个框架，描述了这种扭曲的过渡金属二进制基因生成元的模式中的巨大狄拉克·费米，这构成了层伪植物的动力学。在脱钩的双层中，我们表明了两个平面层假蛋白进动的原因：通过将层反对称应变与山谷磁矩耦合；并通过在反对称应变下的r型双层和对称应变下的H型在SU（2）量规上的Aharonov-bohm效应。随着层间耦合在莫伊尔（Moiré）中，其与应变的相互作用表现为非亚洲仪表场。我们在此类领域中显示了真正的非亚伯aharonov-bohm效应，其中不同环的进化运算符是非交通的。这提供了一个令人兴奋的平台，可以通过应变和层间偏置探索对电子的非亚洲量规场效应，并具有显着的可调性。
Periodicity of long wavelength moiré patterns is very often destroyed by the inhomogeneous strain introduced in fabrications of van der Waals layered structures. We present a framework to describe massive Dirac fermions in such distorted moiré pattern of transition metal dichalcogenides homobilayers, accounting for the dynamics of layer pseudospin. In decoupled bilayers, we show two causes of in-plane layer pseudospin precession: By the coupling of layer antisymmetric strain to valley magnetic moment; and by the Aharonov-Bohm effect in the SU(2) gauge potential for the case of R-type bilayer under antisymmetric strain and H-type under symmetric strain. With interlayer coupling in the moiré, its interplay with strain manifests as a non-Abelian gauge field. We show a genuine non-Abelian Aharonov-Bohm effect in such field, where the evolution operators for different loops are non-commutative. This provides an exciting platform to explore non-Abelian gauge field effects on electron, with remarkable tunability of the field by strain and interlayer bias.
