Molecular Beam Scattering from Clean Surfaces of Alkali Halides.
Abstract
Molecular beam scattering of light gases from in-situ cleaved alkali halide surfaces has been studied as a means of developing molecular beam scattering as a surface characterization tool and as a means of obtaining information about the gas atom-solid surface potential interaction. For 4He scattering from LiF carried out under improved resolution the main results are as follows: There are four bound states in the surface potential well; most of the structure previously designated as 'fine structure' is due either to transitions to these four levels; the transitions involving the (01) and (0,-1) reciprocal lattice vectors are strong; the widths of the lines are consistent with the velocity distribution; and the observed energies agree fairly well with those calculated by Tsuchida. It has been shown in this study that molecular beam scattering is a valuable tool in the characterization of gas atom-surface potentials.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1975
- Accession Number
- ADA013259
Entities
People
- Jeffrey A. Meyers
Organizations
- Pennsylvania State University