A comparison of ion scattering spectra and molecular dynamics simulations at the surface of silicate glasses

J. F. Kelso, C. G. Pantano, S. H. Garofalini

Research output: Contribution to journalArticle

22 Scopus citations


Molecular dynamics simulations are correlated with experimental ion scattering spectra to elucidate the surface structure and composition of fused silica and potassium trisilicate glass. The ion scattering spectra and molecular dynamics simulations both show that the oxygen atoms dominate the surface monolayer of fused silica. The ion scattering spectra of fracture surfaces of potassium trisilicate glass show a large potassium signal with little scattering signal from the oxygen or silicon atoms indicating a predominance of potassium in the surface monolayer. This local enrichment of potassium in the surface monolayer is due to their shielding of the charged silicate tetrahedra at the surface. This is also consistent with the simulations.

Original languageEnglish (US)
Pages (from-to)L543-L549
JournalSurface Science
Issue number3
StatePublished - Dec 1 1983


All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry

Cite this