Layer-dependent Hubbard U values (~60 meV MoSe2, ~30 meV WS2) are extracted and tuned via vertical electric field in a 60°-aligned MoSe2/WS2 heterobilayer using moiré excitons as local probes.
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Layer-tunable Hubbard bands probed via moir\'e excitons in MoSe$_2$/WS$_2$ heterostructures
Layer-dependent Hubbard U values (~60 meV MoSe2, ~30 meV WS2) are extracted and tuned via vertical electric field in a 60°-aligned MoSe2/WS2 heterobilayer using moiré excitons as local probes.