Double-walled carbon nanotubes as hundred gigahertz oscillators
Z. C. Tu, Z. C. Ou-Yang
TL;DR
This paper analytically demonstrates that double-walled carbon nanotubes can function as oscillators with frequencies reaching up to a hundred gigahertz, due to van der Waals interactions.
Contribution
It provides an analytical model showing high-frequency oscillations in double-walled carbon nanotubes based on van der Waals forces.
Findings
Inner nanotube can oscillate within the outer nanotube.
Oscillation frequencies can exceed ten gigahertz, reaching up to a hundred gigahertz.
Analytical expression for the nonlinear potential derived.
Abstract
Based on the van der Waals interaction, the periodically nonlinear potential of a singe-walled carbon nanotube (SWNT) with finite length in an infinite length SWNT is analytically obtained. It is found that the inner SWNT can oscillate in the outer SWNT with frequency beyond ten Gigahertz, even up to a hundred Gigahertz.
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Taxonomy
TopicsMechanical and Optical Resonators · Carbon Nanotubes in Composites · Advanced MEMS and NEMS Technologies