Generalized langevin theory for gas-solid processes: Inelastic scattering studies

Barbara J. Garrison, Steven A. Adelman

Research output: Contribution to journalArticle

35 Scopus citations

Abstract

The generalized Langevin equations for describing gas solid processes are recast as coupled first order differential equations, which are soluble by standard classical trajectory techniques. Energy transfer in rare gas/metal collisions is studied for three computationally simple models: the heatbath Brownian oscillator (hBo) model which includes the effects of the lattice, the Einstein or uncoupled oscillator model and the friction model. The hBo model correctly gives the qualitative behavior of the energy transfer for all collision times; the Einstein model is correct for short collision times but not long ones; and the friction model is unreliable.

Original languageEnglish (US)
Pages (from-to)253-271
Number of pages19
JournalSurface Science
Volume66
Issue number1
DOIs
StatePublished - Aug 1977

All Science Journal Classification (ASJC) codes

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

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