Mott Insulator Polariton in a MoSe2/WS2 Moiré Lattice

IF 9.1 1区材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Nano Letters Pub Date : 2025-10-17 DOI:10.1021/acs.nanolett.5c04233

Xichen Guo, Hao Ge, Kenji Watanabe, Takashi Taniguchi, Zhanghai Chen, Jie Gu

引用次数: 0

Abstract

Transition metal dichalcogenide moiré superlattices host rich correlated electronic states with high tunability. Their integration with optical cavities offers a new platform to explore hybrid light–matter interactions. However, the interplay between electron correlations and polariton formation remains uncharted. Here, we demonstrate the realization of a Mott insulator polariton in a gate-tunable MoSe₂/WS₂ moiré heterostructure embedded in a microcavity at the moiré lattice filling of ν = 1. A silver top layer was used to gate the moiré lattice and form the cavity reflection layer. Magnetic field studies indicate that the polaritons inherit valley Zeeman splitting from the moiré excitons, exhibiting saturation behavior similar to that of the bare moiré excitons. Our work establishes moiré polaritons as an electrically and magnetically tunable platform for engineering the quantum phases of light and matter.

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MoSe2/WS2莫尔晶格中的Mott绝缘子极化子

过渡金属二硫系摩尔超晶格具有丰富的相关电子态和高可调性。它们与光学腔的集成为探索混合光-物质相互作用提供了一个新的平台。然而，电子相关和极化子形成之间的相互作用仍然是未知的。在这里，我们展示了在栅极可调谐的MoSe2/WS2莫尔莫尔异质结构中实现Mott绝缘子极化子，该异质结构嵌入微腔中，莫尔莫尔晶格填充为ν = 1。镀银层用于栅极栅极形成空腔反射层。磁场研究表明，极化子从莫尔激子继承了谷塞曼分裂，表现出与裸莫尔激子相似的饱和行为。我们的工作建立了涡流极化子作为一个电和磁可调的平台，用于设计光和物质的量子相。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Nano Letters 工程技术-材料科学：综合

CiteScore

16.80

自引率

2.80%

发文量

1182

审稿时长

1.4 months

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