Hofstadter Butterfly Fractal in Graphene Moiré Superlattices (IMAGE)

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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