Learn More
nanowire devices from tunneling to the multichannel regime: Zero-bias oscillations and magnetoconductance crossover." Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. The MIT Faculty has made this article openly available. Please share how this(More)
We investigate how the orbital magnetic moments of electron and hole states in a carbon nanotube quantum dot depend on the number of carriers on the dot. Low temperature transport measurements are carried out in a setup where the device can be rotated in an applied magnetic field, thus enabling accurate alignment with the nanotube axis. The field dependence(More)
We here present additional theoretical analysis and experimental data supporting the conclusions in the article. First, the carbon nanotube dispersion relation including spin-orbit interaction is reviewed starting from a modified Dirac Hamiltonian, and the single-particle model used in the fitting procedure is explained. Second, tunneling spectroscopy data(More)
By means of sequential and cotunneling spectroscopy, we study the tunnel couplings between metallic leads and individual levels in a carbon nanotube quantum dot. The levels are ordered in shells consisting of two doublets with strong- and weak-tunnel couplings, leading to gate-dependent level renormalization. By comparison to a one- and two-shell model,(More)
We have contacted single wall carbon nanotubes grown by chemical vapor deposition to super-conducting Ti/Al/Ti electrodes. The device, we here report on is in the Kondo regime exhibiting a four-fold shell structure, where a clear signature of the superconducting electrodes is observed below the critical temperature. Multiple Andreev reflections are revealed(More)
  • 1