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19 April 2024

» arxiv » 1001.2882

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Tuning mechanical modes and influence of charge screening in nanowire resonators
Hari S. Solanki ; Shamashis Sengupta ; Sajal Dhara ; Vibhor Singh ; Sunil Patil ; Rohan Dhall ; Jeevak Parpia ; Arnab Bhattacharya ; Mandar M. Deshmukh ;
Date:	18 Jan 2010
Abstract:	We probe electro-mechanical properties of InAs nanowire (diameter ~ 100 nm) resonators where the suspended nanowire (NW) is also the active channel of a field effect transistor (FET). We observe and explain the non-monotonic dispersion of the resonant frequency with DC gate voltage (VgDC). The effect of electronic screening on the properties of the resonator can be seen in the amplitude. We observe the mixing of mechanical modes with VgDC. We also experimentally probe and quantitatively explain the hysteretic non-linear properties, as a function of VgDC, of the resonator using the Duffing equation.
Source:	arXiv, 1001.2882
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