Exact Theory of Long-Wavelength One-Phonon Aplitudes in Atom-Surface Scattering

Abstract

An expression is derived for the probability of creating or annihilating one long-wavelength surface or bulk phonon during a scattering event, which depends on the bulk elastic constants but is independent of the details of the atom-target potential and of force constant changes near the surface. This expression is exact if the inelastic scattering is weak (the meaning of which is explained in the text). This theory should be experimentally verifiable, e.g. for 20 meV He atoms scattered from a W-surface.

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Document Details

Document Type
Technical Report
Publication Date
Feb 18, 1991
Accession Number
ADA231661

Entities

People

  • Michael E. Flatté
  • Walter Kohn

Organizations

  • University of California, Santa Barbara

Tags

Communities of Interest

  • Energy and Power Technologies
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Abstracts
  • Amplitude
  • Born Approximations
  • California
  • Cartesian Coordinates
  • Dispersion Relations
  • Displacement
  • Equations
  • Frequency
  • Inelastic Scattering
  • Long Wavelengths
  • Military Research
  • Momentum
  • Rayleigh Waves
  • Scattering
  • United States
  • Universities

Fields of Study

  • Physics

Readers

  • Computational Linguistics
  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Quantum spin resonance or Electron Paramagnetic Resonance spectroscopy.