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Contact: Holly Evarts
Columbia University

Hofstadter Butterfly Fractal in Graphene Moiré Superlattices

Caption: This is an artistic image illustration of a butterfly departing from a graphene moiré pattern formed on the top of an atomically thin boron nitride substrate. Electron energy in such a graphene moiré structure exhibits the butterfly like a self-recursive fractal quantum spectrum.

Credit: Columbia Engineering

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Related news release: First direct proof of Hofstadter butterfly fractal observed in moiré superlattices

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