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Twisted van der Waals materials have risen as highly tunable platform forrealizing unconventional superconductivity. Here we demonstrate how atopological superconducting state can be driven in a twisted graphenemultilayer at a twist angle of approximately 1.6 degrees proximitized to other2D materials. We show that an encapsulated twisted bilayer subject to inducedRashba spin-orbit coupling, s-wave superconductivity and exchange fieldgenerates a topological superconducting state enabled by the moire pattern. Wedemonstrate a variety of topological states with different Chern numbers highlytunable through doping, strain and bias voltage. Our proposal does not dependon a fine tuning of the twist angle, but solely on the emergence of moireminibands and is applicable for twist angles between 1.3 and 3 degrees. Ourresults establish the potential of twisted graphene bilayers to createartificial topological superconductivity without requiring ultraflatdispersions.

Moire-enabled artificial topological superconductivity in twisted bilayer graphene