Semiconductor moiré materials realize a highly tunable platform for simulating Hubbard model physics on a triangular lattice. To date experimental studies have focused on the non-topological, flat band limit, where Mott insulators, Wigner crystals and stripe phases have been demonstrated. In this talk, I will discuss how tunable electronic correlations and nontrivial band topology can greatly enrich the electronic phase diagram of the system. Specifically, I will discuss the continuous Mott transition from a non-magnetic Mott insulator to a Fermi liquid and the experimental realization of the Kane-Mele-Hubbard model.
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