Properties of atom scattering from percolation lattices: He scattering from substitutionally disordered Xe+Kr monolayers

R. B. Gerber*, A. T. Yinnon

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

He scattering from substitutionally disordered Xe+Kr monolayers is studied theoretically. The angular distribution of the scattered He, and lifetimes of scattering resonances at the surface, are calculated for different Xe:kr mixing ratios. In addition to Bragg diffraction, new intensity maxima are found. These are interpreted as rainbow effects (disorder rainbows), and may be very useful in characterizing disordered surfaces. Also, trapping resonances are found, which are sharply sensitive to the percolation thresholds for the mixtures. The results show He scattering can be a powerful tool in studying 2D percolation behavior.

Original languageEnglish
Pages (from-to)553-557
Number of pages5
JournalChemical Physics Letters
Volume181
Issue number6
DOIs
StatePublished - 12 Jul 1991

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