New Perturbation Theory for Low-Energy Electron-Diffraction Intensities
- 27 September 1971
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 27 (13), 856-859
- https://doi.org/10.1103/physrevlett.27.856
Abstract
Standard perturbation theory applied to the low-energy electron-diffraction problem does not appear to give accurate results even when carried to second order. A new scheme, renormalized forward-scattering perturbation theory, retains the advantage of being fast to execute, but at the same time is very accurate. The new theory is subjected to the stringent test of comparison with exact results for a realistic model of the copper (100) surface.Keywords
This publication has 5 references indexed in Scilit:
- Dynamical calculations of LEED intensities at clean copper (001) surfaceSurface Science, 1971
- Accurate Calculation of the Low-Energy Electron-Diffraction Spectra of Al by the Layer—Korringa-Kohn-Rostoker MethodPhysical Review Letters, 1971
- Low-Energy Electron-Diffraction Intensity Calculations for Beryllium with a Realistic Crystal PotentialPhysical Review B, 1971
- The application of pseudopotentials to low-energy electron diffraction I. Calculation of the potential and `inner potential'Journal of Physics C: Solid State Physics, 1969
- Electron diffraction at crystal surfaces: II. The double-diffraction pictureSurface Science, 1968