376 citations · 548 across the 3 of their papers we have counts for
4 papers · 1 filter
Carbon nanotubes as ultra-high quality factor mechanical resonators
A. K. Huettel, G. A. Steele, B. Witkamp +3
We have observed the transversal vibration mode of suspended carbon nanotubes at millikelvin temperatures by measuring the single-electron tunneling current. The suspended nanotube…
Pumping of vibrational excitations in a Coulomb blockaded suspended carbon nanotube
A. K. Huettel, B. Witkamp, M. Leijnse +2
Low-temperature transport spectroscopy measurements on a suspended few-hole carbon nanotube quantum dot are presented, showing a gate-dependent harmonic excitation spectrum which,…
Direct control of the tunnel splitting in a one-electron double quantum dot
A. K. Huettel, S. Ludwig, K. Eberl +1
Quasi-static transport measurements are employed on a laterally defined tunnel-coupled double quantum dot. A nearby quantum point contact allows us to track the charge as added to…
Nuclear spin relaxation probed by a single quantum dot
A. K. Huettel, J. Weber, A. W. Holleitner +3
We present measurements on nuclear spin relaxation probed by a single quantum dot in a high-mobility electron gas. Current passing through the dot leads to a spin transfer from the…