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Updated: Aug 14, 2026

Preparation and Characterization of C60/Graphene Hybrid Nanostructures
Published on: May 15, 2018
Anisotropic packing and one-dimensional fluctuations of C60 molecules in carbon nanotubes
K H Michel1, B Verberck, A V Nikolaev
1Department of Physics, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium.
Abstract:
The confinement of a C60 molecule encapsulated in a cylindrical nanotube depends on the tube radius. In small tubes with radius RT approximately < 7 A, a fivefold axis of the molecule coincides with the tube axis. The interaction between C60 molecules in the nanotube is then described by a O2-rotor model on a 1D liquid chain with coupling between orientational and displacive correlations. This coupling leads to chain contraction. The structure factor of the 1D liquid is derived. In tubes with a larger radius the molecular centers of mass are displaced off the tube axis. The distinction of two groups of peapods with on- and off-axis molecules suggests an explanation of the apparent splitting of Ag modes of C60 in nanotubes measured by resonant Raman scattering.
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