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A carbon atom orbiting around the outside of a carbon nanotube

Content Provider	IEEE Xplore Digital Library
Author	Yue Chan Cox, G.M. Hill, J.M.
Copyright Year	2008
Description	Author affiliation: Nanomech. Group Sch. of Math. & Appl. Stat., Univ. of Wollongong, Wollongong, NSW (Yue Chan; Cox, G.M.; Hill, J.M.)
Abstract	In this paper, we examine a carbon atom orbiting around the outside of a (6,6) carbon nanotube, where the orbiting phenomena is assumed to arise only from the van der Waals interactions between the carbon atom and the atoms on the surface of the carbon nanotube. We model the van der Waals forces utilizing the Lennard-Jones potential and assume that the carbon atoms are uniformly distributed over the surface of the carbon nanotube, so that a discrete sum of the atomic potential energy between the carbon atom and the molecule can be approximated by a line integral. The circular orbiting frequency of the system can be estimated by investigating the minimum energy configuration of the effective potential energy. An instability calculation is performed to ensure that the circular orbit remains stable, and the classification of the atompsilas possible loci is determined numerically. We find that the circular orbiting frequency of the proposed system reaches the gigahertz regime, which suggests that such a system has potential to be utilized as an ideal device in future technological development. We also briefly show that the results obtained from the above system can be extended to a fullerene orbiting around the outside of a carbon nanotube without conceptual difficulties, but with increased mathematical complexity.
Starting Page	152
Ending Page	155
File Size	237158
Page Count	4
File Format	PDF
ISBN	9781424415038
DOI	10.1109/ICONN.2008.4639269
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-02-25
Publisher Place	Australia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Potential energy Atomic measurements van der Waals carbon nanotube Carbon nanotubes Orbits gigahertz Carbon Lennard-Jones potential Atomic clocks Carbon atom nano-orbiting system Mathematical model
Content Type	Text
Resource Type	Article

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