Exact Theory of One-Phonon Amplitudes in Diffractive 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. Keywords: Atom surface scattering, Atom surface potential, Long wavelength phonon amplitudes, Reprints.

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Document Details

Document Type
Technical Report
Publication Date
Nov 14, 1990
Accession Number
ADA228928

Entities

People

  • Michael E. Flatté

Organizations

  • University of California, Santa Barbara

Tags

Communities of Interest

  • Energy and Power Technologies
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Amplitude
  • California
  • Cartesian Coordinates
  • Crystallography
  • Diffraction
  • Elastic Scattering
  • Inelastic Scattering
  • Long Wavelengths
  • Military Research
  • New York
  • Physics
  • Scattering
  • Security
  • Solid State Physics
  • United States
  • Universities
  • Wave Functions

Fields of Study

  • Physics

Readers

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