Phase behavior and material properties of hollow nanoparticles
Abstract
Effective pair potentials for hollow nanoparticles like the ones made from carbon (fullerenes) or metal dichalcogenides (inorganic fullerenes) consist of a hard core repulsion and a deep, but short-ranged, van der Waals attraction. We investigate them for single- and multi-walled nanoparticles and show that in both cases, in the limit of large radii the interaction range scales inversely with the radius, , while the well depth scales linearly with . We predict the values of the radius and the wall thickness at which the gas-liquid coexistence disappears from the phase diagram. We also discuss unusual material properties of the solid, which include a large heat of sublimation and a small surface energy.
Cite
@article{arxiv.cond-mat/0009027,
title = {Phase behavior and material properties of hollow nanoparticles},
author = {U. S. Schwarz and S. A. Safran},
journal= {arXiv preprint arXiv:cond-mat/0009027},
year = {2009}
}
Comments
Revtex, 13 pages with 8 Postscript files included, submitted to Phys. Rev. E