Artificial intelligence for artificial materials: moiré atom

03/14/2023

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by   Di Luo, et al.

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Moiré engineering in atomically thin van der Waals heterostructures creates artificial quantum materials with designer properties. We solve the many-body problem of interacting electrons confined to a moiré superlattice potential minimum (the moiré atom) using a 2D fermionic neural network. We show that strong Coulomb interactions in combination with the anisotropic moiré potential lead to striking “Wigner molecule" charge density distributions observable with scanning tunneling microscopy.