Nearest Neighbor Spacings of Clean Vanadium Surfaces from Extended Appearance Potential Fine Structure,
Abstract
Fine structure in the excitation probability of the 2p core state of vanadium by electron bombardment has been found to extend for several hundred volts above the appearance potential threshold. The structure results from interference of an outgoing spherical wave of a scattered electron with backscattered components from neighboring atoms. It is therefore analogous to extended X-ray absorption fine structure (EXAFS) and it should be possible to extract geometric information using the same Fourier inversion techniques. The short mean free path for inelastic scattering of the incident electrons, however, renders the technique sensitive to the structure in just the outermost layers of the material.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1978
- Accession Number
- ADA057142
Entities
People
- L. Roelofs
- P. I. Cohen
- Robert L. Park
- W. T. Elam
Organizations
- University of Maryland