A re-examination of thermal accommodation coefficient theory

摘要: Abstract Contrary to accepted ideas, the first-order quantum-mechanical perturbation theory of Lennard-Jones and Devonshire (7) can give correct results for energy transferred from a “high” gas atom solid surface which it hits, even though creation several phonons simultaneously in is required. Simple models are used show that Landau 's continuum model leads factor two error high (“hard”) impacts, consideration by D evonshire an internal lattice place except hard use Zwanzig (8) Cabrera (14) one-dimensional commonly-held fallacy when heavier than atoms, as shown also Goodman .(18) It further work Miller Pursey (16, 17) modes, not considered existing accommodation coefficient theories, may augment transfer three or more. The impact energies be well below sputtering threshold allow linearization interactions between atoms.