Clamping and Q-Factor Improvement in a Carbon Nanotube Resonator

This work reports the clamping effects on the performance of a carbon nanotube basednanoresonator. A direct comparison of two different nanotube-clamping geometries on the samenanotube device is presented. The nanotube was mechanically dry transferred and clamped throughvan-der-Waals forces onto palladium electrodes resulting in a bottom clamped configuration. A 20nm platinum layer was then selectively deposited on the electrodes through atomic layerdeposition resulting in top-bottom clamped configuration. With top clamping, a Q-factor increaseof 1.5~2× has been observed accompanied by a decrease in the resonance frequency.

Nonlinear dynamics of a doubly clamped carbon nanotube resonator considering surface stress

A new study on the dynamic performances of doubly clamped carbon nanotube resonators taking account of the surface effect has been performed.

Possibility of Majorana signature detecting via a single-electron spin implanted in a suspended carbon nanotube resonator

Motivated by recent experimental progress towards the detection and manipulation of Majorana fermions in hybrid semiconductor/superconductor heterostructures, we present a novel proposal based on a suspended carbon nanotube resonator with a single-electron spin to probe Majorana fermions in the all-optical domain.