Résumé:

This paper presents a potential new way to detect radio-frequency signals originating from nuclear magnetic resonance in the presence of a high static magnetic field. Our work concerns the design and the characterization of a nano-antenna based on nanoelectromechanical systems. For this purpose, single carbon nanotube devices have been selected for their unique interplay between electrical and mechanical characteristics. Following, the careful determinations of the field emission properties and the resonance frequencies of the device, the detection of a radio-frequency signal from an external radio-frequency source is shown to be realistic. Work is in progress in order to validate the use of this type of nano-probe for the NMR investigations of reference and real samples.