Local curvature and stability of two-dimensional systems
arXiv:1403.7361 · doi:10.1103/PhysRevB.90.245403
Abstract
We propose a fast method to determine the local curvature in two-dimensional (2D) systems with arbitrary shape. The curvature information, combined with elastic constants obtained for a planar system, provides an accurate estimate of the local stability in the framework of continuum elasticity theory. Relative stabilities of graphitic structures including fullerenes, nanotubes and schwarzites, as well as phosphorene nanotubes, calculated using this approach, agree closely with ab initio density functional calculations. The continuum elasticity approach can be applied to all 2D structures and is particularly attractive in complex systems with known structure, where the quality of parameterized force fields has not been established.
References in corpus (5)
- Two Dimensional Atomic Crystals
- Semiconducting layered blue phosphorus: A computational study
- All-graphene integrated circuits via strain engineering
- High stability of faceted nanotubes and fullerenes of multi-phase layered phosphorus: A computational study
- Hydrogen-induced disintegration of fullerenes and nanotubes: An ab initio study