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Cluster-surface and cluster-cluster interactions: Ab initio calculations and modeling of asymptotic van der Waals forces

Authors: S. Botti, A. Castro, X. Andrade, A. Rubio, and M.A.L. Marques

Ref.: Phys. Rev. B 78, 035333 (2008)

Abstract: We present fully ab initio calculations of van der Waals coefficients for two different situations: (i) the interaction between hydrogenated silicon clusters and (ii) the interactions between these nanostructures and a nonmetallic surface (a silicon or a silicon carbide surface). The methods used are very efficient and allow the calculation of systems containing hundreds of atoms. The results obtained are further analyzed and understood with the help of simple models. These models can be of interest for molecular-dynamics simulations of silicon nanostructures on surfaces, where they can give a very fast yet sufficiently accurate determination of the van der Waals interaction at large separations.

Citations: 21 (Google scholar)

DOI: 10.1103/PhysRevB.78.035333

URL: link.aps.org

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Bibtex:

@article{Botti_2008,
	doi = {10.1103/physrevb.78.035333},
	url = {https://doi.org/10.1103%2Fphysrevb.78.035333},
	year = 2008,
	month = {jul},
	publisher = {American Physical Society ({APS})},
	volume = {78},
	number = {3},
	author = {Silvana Botti and Alberto Castro and Xavier Andrade and Angel Rubio and Miguel A. L. Marques},
	title = {Cluster-surface and cluster-cluster interactions:Ab initiocalculations and modeling of asymptotic van der Waals forces},
	journal = {Physical Review B}
}