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arXiv · 1502.07037

Two-Dimensional Scandium Carbide Monolayer and its Nanotubes

Jing Wang·Hong-Man Ma·Ying Liu
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Abstract

A two-dimensional scandium carbide monolayer with a Sc3C10 primitive cell (Sc3C10 sheet) has been identified using first-principles density functional theory. In the Sc3C10 sheet, there is a similar basic structure to the one in the Volleyballene Sc20C60, the Sc8C10 subunit, in which two connected carbon pentagons are surrounded by one scandium octagon. The hybridization between Sc d orbitals and C s-p orbitals is crucial for stabilizing the Sc3C10 sheet. Ab initio molecular dynamics simulations demonstrate that this Sc3C10 sheet is exceptionally stable. In addition, a series of stable ScC nanotubes have been obtained by rolling up this Sc3C10 sheet. All nanotubes studied have been found to be metallic.

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Jing Wang, Hong-Man Ma, Ying Liu. 2015-02-25. Two-Dimensional Scandium Carbide Monolayer and its Nanotubes. https://arxiv.org/abs/1502.07037

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