Dynamic friction force in a carbon peapod oscillator

TL;DR

This paper studies the energy dissipation and dynamic friction in a novel carbon nanotube-based nano-oscillator with a buckyball, highlighting edge effects and the influence of temperature and velocity.

Contribution

It provides the first quantitative analysis of energy dissipation channels and identifies edge effects as the main source of dynamic friction in carbon peapod oscillators.

Findings

Edge effects dominate dynamic friction in the oscillator.

Temperature and impulse velocity significantly affect energy dissipation.

Molecular dynamics simulations effectively characterize dissipation channels.

Abstract

We investigate a new generation of fullerene nano-oscillators: a single-walled carbon nanotube with one buckyball inside with an operating frequency in the tens-of-gigahertz range. A quantitative characterization of energy dissipation channels in the peapod pair has been performed via molecular dynamics simulation. Edge effects are found to the dominant cause of dynamic friction in the carbon-peapod oscillators. A comparative study on energy dissipation also reveals significant impact of temperature and impulse velocity on the frictional force.