Gate-defined graphene double quantum dot and excited state spectroscopy.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 20377196.
- Also identified by DOI 10.1021/nl9040912.
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Abstract
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.
Medical subject headings
- Graphite
- Nanostructures
- Nanotechnology
- Quantum Dots
- Signal Processing, Computer-Assisted