Electromechanical instabilities of suspended carbon nanotubes---multi mode excitations (original) (raw)

New Journal of Physics, 2007

Abstract

We investigate theoretically the occurrence of 'shuttle-like' electromechanical instabilities in systems where charge transfer processes interact with several mechanical degrees of freedom simultaneously. In particular we consider the excitation of the multiple bending modes of a suspended carbon nanotube (CNT) due to the injection of current from the tip of a scanning tunnelling microscope (STM) into the suspended part of

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