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Cooling carbon nanotubes to the phononic ground state with constant electron current
Stefano Zippilli, Giovanna Morigi, Adrian Bachtold
We present a quantum theory of cooling of a mechanical resonator using back-action with constant electron current. The resonator device is based on a doubly clamped nanotube, which…
The environment of graphene probed by electrostatic force microscopy
J. Moser, A. Verdaguer, D. Jimenez +2
We employ electrostatic force microscopy to study the electrostatic environment of graphene sheets prepared with the micro-mechanical exfoliation technique. We detect the electric…
Current-induced cleaning of graphene
J. Moser, A. Barreiro, A. Bachtold
A simple yet highly reproducible method to suppress contamination of graphene at low temperature inside the cryostat is presented. The method consists of applying a current of seve…