Accession Number:

ADA172055

Title:

High Resolution Electron Energy Loss Studies of Chemisorbed Species on Aluminum and Titanium.

Descriptive Note:

Final rept. 1 Apr 83-31 Mar 86,

Corporate Author:

TEXAS UNIV AT AUSTIN DEPT OF PHYSICS

Personal Author(s):

• Erskine,J. L.

Report Date:

1986-04-12

Pagination or Media Count:

14.0

Abstract:

This project utilized high resolution electron energy loss spectroscopy to investigate chemical processes at metal surfaces. The research during the grant period being reported has been highly successful in a advancing the state of the art in instrumentation, b developing lattice dynamical techniques for calculating the vibrational properties of surfaces and demonstrating the application of these techniques to structure determination, c exploring the application of vibrational spectroscopy to novel underlayer formation occurring as a consequence of chemisorption at Al and Ti surfaces, d examining some of the fundamental issues related to scattering mechanisms and selection rules that govern them. Our experiments have also uncovered an interesting relationship between the surface vibrational properties and the order-disorder phase transformation of W100.

Descriptors:

• *SURFACE CHEMISTRY
• *ELECTRON SPECTROSCOPY
• MOLECULAR VIBRATION
• ORDER DISORDER TRANSFORMATIONS
• ALUMINUM
• NICKEL
• TITANIUM
• LATTICE DYNAMICS
• PHONONS
• RESEARCH MANAGEMENT
• TUNGSTEN
• CHEMISORPTION
• VIBRATIONAL SPECTRA

Subject Categories:

• Atomic and Molecular Physics and Spectroscopy

Distribution Statement:

APPROVED FOR PUBLIC RELEASE