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 language | English |
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Pages (from-to) | 1847-1850 |
Number of pages | 4 |
Journal | Physical Review Letters |
Volume | 49 |
Issue number | 25 |
DOIs | |
State | Published - 1 Jan 1982 |
Externally published | Yes |
ASJC Scopus subject areas
- General Physics and Astronomy