Gates controlled parallel-coupled double quantum dot on both single layer and bilayer graphene

Details Gates controlled parallel-coupled double quantum dot on both single layer and bilayer graphene Gates controlled parallel-coupled double quantum dot on both single layer and bilayer graphene

2011-04-20

arxiv.org/abs/1104.3979v2

Physics

Quantum Physics

10 pages, 6 figures

Scientific paper

Here we report the fabrication and quantum transport measurements of gates controlled parallel-coupled double quantum dot on both bilayer and single layer graphene. It is shown that the interdot coupling strength of the parallel double dots can be effectively tuned from weak to strong regime by both the in-plane plunger gates and back gate. All the relevant energy scales and parameters of the graphene parallel-coupled double dot can be extracted from the honeycomb charge stability diagrams revealed through the transport measurements.

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