We are addressing different directions with major scientific interests, including nuclear magnetic resonance (NMR) measurements on single nuclear spins, electron spin resonance (ESR) measurements on single molecules, the study of nano-superfluidity in helium-4 films adsorbed onto suspended nanotubes, and the study of the basic properties of semiconductor monolayers, such as MoS2 and WSe2.
Mass Sensing with nanotube
& graphene Mechanical Resonator.
The aim of the project is to use nanotube & graphene mechanical resonators for mass sensing.
We achieved a resolution of about one yoctogram, which corresponds to the mass of one proton. The reason for the high mass sensitivity is that the mass of nanotubes and graphene is ultra-low, so even a tiny amount of deposited atoms makes up a significant fraction of the total mass. We use mass sensing to study the dynamics of atoms and molecules interacting with nanotubes and graphene with an unprecedented resolution, such as adsorption, diffusion, and desorption.
Nuclear magnetic resonance (NMR)
measurements on single nuclear spins.
We are carrying out nuclear magnetic resonance (NMR) measurements on single nuclear spins adsorbed onto nanotube resonators.
We are also performing magnetic-resonance force microscopy in order to image these individual nuclear spins. Achieving the objectives proposed here will be an unprecedented success in magnetic resonance imaging (MRI).
Electron spin resonance (ESR) measurements
on single molecules.
We are performing electron spin resonance (ESR) measurements on single molecules using nanotube resonators.
The goal is to see whether nature can provide molecular electronic spins endowed with long dephasing time. For this, our aim is to measure molecular spins in a regime where the magnetic noise of the environment is reduced to an unprecedented level. In case of success, this work could open avenues in quantum science by allowing experiments not possible with the electronic spins of nitrogen-vacancy centres in diamond.
on Carbon Nanotube.
We propose a completely new experimental approach to investigate superfluidity.
We are using a nanotube mechanical resonator to probe the superfluidity properties of helium-4 layers adsorbed onto the suspended nanotube. Our aim is to study various quantum phenomena in superfluidity of considerable interest and from a radically new perspective.
Mechanical resonators based
on semiconductor monolayers.
We take advantage of our expertise on nanoscale resonators to study resonators based on monolayer semiconductors, such as WSe2 and MoS2.
These new 2-dimensional materials have recently attracted enormous interest because of their exceptional optical and electronic properties, but studies of their mechanical vibrations are extremely scarce. The aim of this project is to couple mechanical vibrational states to two-dimensional excitons, valley pseudospins, and single quantum emitters.