A gate-defined bilayer graphene antidot shows a tunable crossover from single-dot to double-dot behavior, with an apparent doubling of the tunneling charge at even filling factors.
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Tunable Inter-Edge Interactions in a Bilayer Graphene Quantum Hall Antidot
A gate-defined bilayer graphene antidot shows a tunable crossover from single-dot to double-dot behavior, with an apparent doubling of the tunneling charge at even filling factors.