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Tuning nanoelectromechanical resonators with mass migration
Kwanpyo Kim1, K Jensen, A Zettl
1Department of Physics and Center of Integrated Nanomechanical Systems, University of California at Berkeley, Berkeley, California 94720, USA.
Abstract:
We demonstrate tuning of nanoelectromechanical resonators via mass migration. Indium nanoparticles can be reversibly migrated to different locations along cantilevered multiwalled carbon nanotube resonators using electrical currents as the control parameter. Nonvolatile mass redistributions result in stable resonant frequency shifts as large as 20%. The tuning method is robust and can be utilized for nanoelectromechanical resonators operating at frequencies from audio to microwave.
