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Strong-interaction-driven quadrupolar-to-dipolar exciton transitions in a trilayer moiré superlattice

A dual-gated moiré superlattice device made of trilayer WSe₂/WS₂/WSe₂ enables controlling quadrupolar excitons by driving quadrupolar-to-dipolar exciton transitions via tuning the excitation intensity and doping.

Yuze Meng
Lei Ma
Su-Fei Shi
Research21 Aug 2025
Nature Photonics

P: 1-6
Quadrupolar excitons and hybridized interlayer Mott insulator in a trilayer moiré superlattice

The authors observe the signatures of quadrupolar excitons in a WSe₂-WS₂-WSe₂ trilayer moiré superlattice, originating from the hybridization of the WSe₂ valence moiré flatbands. They further use electrostatic gating to reveal a hybridized interlayer Mott insulator state, with holes shared between the two WSe₂ layers but laterally confined in moiré superlattices.

Zhen Lian
Dongxue Chen
Su-Fei Shi
ResearchOpen Access01 Aug 2023
Nature Communications

Volume: 14, P: 1-7
Strong interaction between interlayer excitons and correlated electrons in WSe₂/WS₂ moiré superlattice

Heterobilayers of transition metal dichalcogenides host moiré superlattices that give rise to strong electron interactions. Here, the authors study the photoluminescence from interlayer excitons in a WS₂/WSe₂ heterobilayer to reveal the onset of various correlated insulating states.

Shengnan Miao
Tianmeng Wang
Su-Fei Shi
ResearchOpen Access14 Jun 2021
Nature Communications

Volume: 12, P: 1-6
Tuning moiré excitons and correlated electronic states through layer degree of freedom

Twisted heterostructures of transition metal dichalcogenides host the so-called moiré excitons, or intralayer excitons modified by the moiré potential. Here the authors show tunability of the moiré excitons and the coexisting correlated electronic states in WSe₂/WS₂ superlattices with varying WSe₂ layer thickness

Dongxue Chen
Zhen Lian
Su-Fei Shi
ResearchOpen Access16 Aug 2022
Nature Communications

Volume: 13, P: 1-8
Correction: Corrigendum: Ubiquitin ligase RNF20/40 facilitates spindle assembly and promotes breast carcinogenesis through stabilizing motor protein Eg5

Yang Duan
Dawei Huo
Chenghao Xuan
Amendments and CorrectionsOpen Access04 Nov 2016
Nature Communications

Volume: 7, P: 1-2
Exciton Superposition across Moiré States in a Semiconducting Moiré Superlattice

The moiré lattice of trilayer WSe₂ and monolayer WS₂ host interlayer excitons localized at different moiré sites. Using an electric field, the authors tune the superposition between two moiré sites via hybridization with intralayer excitons in WSe₂.

Zhen Lian
Dongxue Chen
Su-Fei Shi
ResearchOpen Access19 Aug 2023
Nature Communications

Volume: 14, P: 1-7
Valley-polarized excitonic Mott insulator in WS₂/WSe₂ moiré superlattice

Interactions between excitons and correlated electrons can lead to the formation of interesting states. Now, evidence suggests that these interactions can give rise to a Mott insulator of excitons.

Zhen Lian
Yuze Meng
Su-Fei Shi
Research06 Nov 2023
Nature Physics

Volume: 20, P: 34-39
Excitonic insulator in a heterojunction moiré superlattice

Stacking monolayer WS₂ on top of bilayer WSe₂ creates conditions where electrons and holes can coexist in the structure. Their Coulomb interaction allows them to form bound pairs and hence an excitonic insulator state.

Dongxue Chen
Zhen Lian
Su-Fei Shi
Research08 Aug 2022
Nature Physics

Volume: 18, P: 1171-1176
Ubiquitin ligase RNF20/40 facilitates spindle assembly and promotes breast carcinogenesis through stabilizing motor protein Eg5

Eg5 has a role in spindle assembly and has been associated with tumorigenesis but it is not clear how its activity is regulated. Here, the authors show that the E3 ligase RNF20/40 regulates mitotic spindle assembly by regulating the stability of Eg5 through mono-ubiquitination of K745.

Yang Duan
Dawei Huo
Chenghao Xuan
ResearchOpen Access25 Aug 2016
Nature Communications

Volume: 7, P: 1-14
USP9X regulates centrosome duplication and promotes breast carcinogenesis

USP9X is a deubiquitinating enzyme with many known substrates and functions; it has been linked to cancer but the mechanisms remain unclear. Here Liet al. report that USP9X stabilizes the centrosomal protein CEP131 leading to centrosome amplification and breast cancer development.

Xin Li
Nan Song
Lei Shi
ResearchOpen Access31 Mar 2017
Nature Communications

Volume: 8, P: 1-16

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