论文标题
互动驱动的填充诱导的金属绝缘子在2DMoiré晶格中
Interaction-Driven Filling-Induced Metal-Insulator Transitions in 2D Moiré Lattices
论文作者
论文摘要
使用逼真的频带结构来用于扭曲的WSE $ _2 $材料，我们开发了一种与互动驱动的相关绝缘子的理论，通过通过调整填充因子在2d Honeycomb晶格中的MoiréTimelCell的填充因子周围调整填充因子进行过渡，重点是相互作用的半纤维隔热状态，以使其既互动又互动，这两者都差不多。我们发现金属状态略微远离半填充，就像最近在实验中观察到的那样。我们讨论所得绝缘和金属相的稳定性和磁性，并对它们的实验特征发表评论。我们还讨论了在理性分数填充物中相关的绝缘体状态的性质。
Using a realistic band structure for twisted WSe$_2 $ materials, we develop a theory for the interaction-driven correlated insulators to conducting metals transitions through the tuning of the filling factor around commensurate fractional fillings of the moiré unit cell in the 2D honeycomb lattice, focusing on the dominant half-filled Mott insulating state, which exists for both long- and short-range interactions. We find metallic states slightly away from half-filling, as have recently been observed experimentally. We discuss the stabilities and the magnetic properties of the resulting insulating and metallic phases, and comment on their experimental signatures. We also discuss the nature of the correlated insulator states at the rational fractional fillings.
