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Kagome Chiral Spin Liquid in Transition Metal Dichalcogenide Moiré Bilayers

Published on December 1, 2022

At n=3/4 filling of the moiré flat band, transition metal dichalcogenide moiré bilayers will develop kagome charge order. We derived an effective spin model for the resulting localized spins and study its phase diagram using density matrix renormalization group simulations. Using realistic model parameters relevant for WSe2/WS2, we showed that this material can realize the exotic chiral spin liquid phase and the highly debated kagome spin liquid. Our work thus shows that the frustration and strong interactions present in TMD heterobilayers provide an exciting platform to study spin liquid physics.
Johannes MotrukDario RossiDmitry A. AbaninLouk Rademaker