Superconducting Tunneling Spectroscopy of a Carbon Nanotube Quantum Dot

Details Superconducting Tunneling Spectroscopy of a Carbon Nanotube Quantum Dot Superconducting Tunneling Spectroscopy of a Carbon Nanotube Quantum Dot

2009-07-16

arxiv.org/abs/0907.2886v2

Appl. Phys. Lett. 95, 192103 (2009)

Physics

Condensed Matter

Strongly Correlated Electrons

12 pages, 3 figures

Scientific paper

We report results on superconducting tunneling spectroscopy of a carbon nanotube quantum dot. Using a three-probe technique that includes a superconducting tunnel probe, we map out changes in conductance due to band structure, excited states, and end-to-end bias. The superconducting probe allows us to observe enhanced spectroscopic features, such as robust signals of both elastic and inelastic co-tunneling. We also see evidence of inelastic scattering processes inside the quantum dot.

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