Classical stochastic diffusion theory for desorption of atoms and molecules from solid surfaces

Antonio Redondo, Yehuda Zeiri, William A. Goddard

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

A theory of desorption of atoms and molecules from solid surfaces based on a classical stochastic diffusion formulation is presented. A simple rate expression is obtained which has the form R=(Ω02π)f(T)exp(-DekT), where Ω0 is the surface-adsorbate vibrational frequency, f(T)=1 for atoms, and for molecules f(T) depends on the parameters for the frustrated rotations at the surface. This theory has been applied to the desorption of both atoms and molecules and excellent agreement with experiment is obtained.

Original languageEnglish
Pages (from-to)1847-1850
Number of pages4
JournalPhysical Review Letters
Volume49
Issue number25
DOIs
StatePublished - 1 Jan 1982
Externally publishedYes

ASJC Scopus subject areas

  • General Physics and Astronomy

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