638 citations · 2.8k across the 18 of their papers we have counts for
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Crossover between Strongly-coupled and Weakly-coupled Exciton Superfluids
Xiaomeng Liu, J. I. A. Li, Kenji Watanabe +5
In fermionic systems, superconductivity and superfluidity are enabled through the condensation of fermion pairs. The nature of this condensate can be tuned by varying the pairing s…
Evidence for a Monolayer Excitonic Insulator
Yanyu Jia, Pengjie Wang, Cheng-Li Chiu +19
The interplay between topology and correlations can generate a variety of quantum phases, many of which remain to be explored. Recent advances have identified monolayer WTe2 as a p…
Spectroscopy of a Tunable Moiré System with a Correlated and Topological Flat Band
Xiaomeng Liu, Cheng-Li Chiu, Jong Yeon Lee +5
Moiré superlattices created by the twisted stacking of two-dimensional crystalline monolayers can host electronic bands with flat energy dispersion in which interaction among elect…
Deep-ultraviolet Layered Oxide B2S2O9 with Strong and Robust Second Harmonic Generation
Lei Kang, Xiaomeng Liu, Zheshuai Lin +1
Two-dimensional (2D) layered semiconductors with both ultrawide bandgap and strong second harmonic generation (SHG) are essential for expanding the nonlinear optical (NLO) applicat…