title: Excited state spectroscopy in carbon nanotube double quantum dots.
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 and control the coupling between them, and we observe 4-fold shell filling. We perform inelastic transport spectroscopy via the excited states in the double quantum dot, a necessary step toward the implementation of new microwave-based experiments.
authors.affiliation: Kavli Institute of Nanoscience, Delft University of Technology, The Netherlands. sami@qt.tn.tudelft.nl
authors.forename: Sami
authors.initials: S
authors.lastname: Sapmaz
authors.forename: Carola
authors.initials: C
authors.lastname: Meyer
authors.forename: Piotr
authors.initials: P
authors.lastname: Beliczynski
authors.forename: Pablo
authors.initials: P
authors.lastname: Jarillo-Herrero
authors.forename: Leo P
authors.initials: LP
authors.lastname: Kouwenhoven
mesh_terms: D018625:Microscopy, Atomic Force; D037742:Nanotubes, Carbon; D045663:Quantum Dots; D013057:Spectrum Analysis / Q000379:methods
chemical_list: D037742:Nanotubes, Carbon