Journal
NANO LETTERS
Volume 10, Issue 5, Pages 1623-1627Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nl9040912
Keywords
Double quantum dot; graphene; excited state; top gate; disorder
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Funding
- Dutch Foundation for Fundamental Research on Matter (FOM)
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A double quantum dot is formed in a graphene nanoribbon device using three top gates. These gates independently change the number of electrons on each dot and tune the interdot coupling. Transport through excited states is observed in the weakly coupled double dot regime. We extract from the measurements all relevant capacitances of the double dot system, as well as the quantized level spacing.
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