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Nanoscale Res Lett. 2011 Mar 14;6(1):216. doi: 10.1186/1556-276X-6-216.

Effect of Peierls transition in armchair carbon nanotube on dynamical behaviour of encapsulated fullerene.

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  • 1Physics Department, Belarusian State University, pr, Nezavisimosti 4, Minsk 220030, Belarus. poklonski@bsu.by.

Abstract

The changes of dynamical behaviour of a single fullerene molecule inside an armchair carbon nanotube caused by the structural Peierls transition in the nanotube are considered. The structures of the smallest C20 and Fe@C20 fullerenes are computed using the spin-polarized density functional theory. Significant changes of the barriers for motion along the nanotube axis and rotation of these fullerenes inside the (8,8) nanotube are found at the Peierls transition. It is shown that the coefficients of translational and rotational diffusions of these fullerenes inside the nanotube change by several orders of magnitude. The possibility of inverse orientational melting, i.e. with a decrease of temperature, for the systems under consideration is predicted.

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