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Excited state spectroscopy in carbon nanotube double quantum dots

Sami Sapmaz·Carola Meyer·Piotr Beliczynski·Pablo Jarillo-Herrero·Leo P. Kouwenhoven
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Abstract

We report on low temperature measurements in a fully tunable carbon nanotube double quantum dot. A new fabrication technique has been used for the top-gates in order to avoid covering the whole nanotube with an oxide layer as in previous experiments. The top-gates allow us to form single dots, control the coupling between them and we observe four-fold shell filling. We perform inelastic transport spectroscopy via the excited states in the double quantum dot, a necessary step towards the implementation of new microwave-based experiments.

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Sami Sapmaz, Carola Meyer, Piotr Beliczynski, Pablo Jarillo-Herrero, Leo P. Kouwenhoven. 2006-02-17. Excited state spectroscopy in carbon nanotube double quantum dots. https://doi.org/10.1021/nl052498e

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