论文标题
莫伊尔（Moiré）激子与库仑相关的状态，并在半导体莫伊尔（Moiré）晶格中获得指控
Coulomb-correlated states of moiré excitons and charges in a semiconductor moiré lattice
论文作者
论文摘要
半导体Moiré异质结构表现出丰富的相关诱导的多体现象，具有新兴磁性，莫特绝缘状态或通用的Wigner晶体的特征，通过探测在光谱中观察到的通用晶体，通过探测内部的激子。但是，随着基础WSE $ _2 $/ws $ _2 $杂波系统的交错频段对齐系统将光激发的电子和孔分开以形成最低能量的中间层中激素，直接访问相关的电荷状态和基态Moiréexcitons之间的相互作用。在这里，我们使用Mose $ _2 $/WS $ _2 $ HETEROSTACKS具有I型带对齐方式的Heterostacks来探测基本充电与Moiré激发量的地面和激发态的库仑相互作用。除了正面和负面的MoiréTrions外，还让人联想到其在单层Mose $ _2 $中的规范对应物外，我们还揭示了MoiréConcitons和Prixtional Exciton之间形成的新颖的多体状态，该状态在定期MoiréLattice的分数填充因子处。对于电子和孔，这些状态都表现出兴奋剂依赖性的兰德因子是相关引起的磁性的标志，从而识别摩西$ _2 $ _2 $/ws $ _2 $杂波词是对歧义掺杂方案中相关现象研究的独特系统。
Semiconductor moiré heterostructures exhibit rich correlation-induced many-body phenomena with signatures of emergent magnetism, Mott insulating states or generalized Wigner crystals observed in optical spectroscopy by probing intralayer excitons. However, as the staggered band alignment in the underlying WSe$_2$/WS$_2$ heterobilayer system separates photoexcited electrons and holes to form lowest-energy interlayer excitons, direct access to interactions between correlated charge states and ground state moiré excitons remained elusive. Here, we use MoSe$_2$/WS$_2$ heterostacks with type-I band alignment to probe Coulomb interactions of elementary charges with the ground and excited states of moiré excitons. In addition to positive and negative moiré trions reminiscent of their canonical counterparts in monolayer MoSe$_2$, we reveal novel many-body states formed between moiré excitons and charges at fractional filling factors of the periodic moiré lattice. For both electrons and holes, these states exhibit doping-dependent Landé factors as a hallmark of correlation-induced magnetism, identifying the MoSe$_2$/WS$_2$ heterobilayer as a unique system for studies of correlated phenomena in ambipolar doping regimes.
