论文标题
旋转铂金旋转型旋转轨道耦合的Moiré工程
Moiré Engineering of Spin-Orbit Coupling in Twisted Platinum Diselenide
论文作者
论文摘要
我们使用大规模的初始模拟结合了功能重新归一化组的大规模diselenide的扭曲双层双层的电子结构和相关阶段。 PTSE $ _2 $是一个Group-X过渡金属二分元化物，它在扭曲的双层中以小扭曲角的形式托管新出现的扁平带。值得注意的是，我们发现Moiré工程可以用来调整Rashba自旋轨道相互作用的强度，从而以新颖的方式改变电子行为。我们透露，可以实现动力学和自旋轨耦合量表之间具有扭曲控制比的有效三角晶格。即使是主要的自旋轨道耦合，也可以以这种方式访问，我们讨论了相互作用驱动的相图的后果，该相图具有明显的外来超导和纠缠的自旋荷兰密度波。
We study the electronic structure and correlated phases of twisted bilayers of platinum diselenide using large-scale ab initio simulations combined with the functional renormalization group. PtSe$_2$ is a group-X transition metal dichalcogenide, which hosts emergent flat bands at small twist angles in the twisted bilayer. Remarkably, we find that moiré engineering can be used to tune the strength of Rashba spin-orbit interactions, altering the electronic behavior in a novel manner. We reveal that an effective triangular lattice with a twist-controlled ratio between kinetic and spin-orbit coupling scales can be realized. Even dominant spin-orbit coupling can be accessed in this way and we discuss consequences for the interaction driven phase diagram, which features pronounced exotic superconducting and entangled spin-charge density waves.
