Accession Number:

AD0774414

Title:

The Determination of Surface Debye Temperatures from Low-Energy Electron Diffusion Data,

Descriptive Note:

Corporate Author:

STATE UNIV OF NEW YORK STONY BROOK DEPT OF MATERIALS SCIENCE

Personal Author(s):

• Jona,F.
• Jepsen,D. W.
• Marcus,P. M.

Report Date:

1973-06-20

Pagination or Media Count:

16.0

Abstract:

The temperature dependence of low-energy electron diffraction LEED intensities has often been interpreted with kinematic theory in terms of an effective Debye temperature thetaDeff of the surface atoms. The validity of this procedure, often questioned in the literature, is tested with a computer experiment in which LEED spectra are calculated from dynamical theory layer-KKR method for a model of Ag111 with a given value of thetaDeff and then the usual kinematic formulae are used to re-extract the value of thetaDeff. The results of the experiment are discussed. Modified author abstract

Descriptors:

• *Silver
• *Surface temperature
• *Electron diffraction
• Low energy
• Crystal lattices

Subject Categories:

• Solid State Physics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE