Oscillation of the CNS/CNT nano-oscillator excited and driven by an external electric field. (a) The oscillation of the CNT for an external electrical field with an ac frequency of 125 GHz. (b) The peak oscillation amplitude of each cycle and the corresponding oscillation frequency as a function of time. The external AC electrical field can override the natural frequency of the CNS-based nano-oscillator. There is no appreciable decay of peak oscillation amplitude. The simulations are carried out at 100 K.
Zhang and Li Nanoscale Research Letters 2011 6:470 doi:10.1186/1556-276X-6-470