Accession Number:

ADA137968

Title:

Momentum Dependent Line Shapes in Photoemission.

Descriptive Note:

Technical interim rept.,

Corporate Author:

PENNSYLVANIA UNIV PHILADELPHIA

Personal Author(s):

• DiDio,R. A.
• Plummer,E. W.
• Graham,W. R.

Report Date:

1984-01-17

Pagination or Media Count:

15.0

Abstract:

The crystal-momentum dependence of the line shapes appearing in photo-excitation from the valence levels of ordered S on Fe100 has been measured using angle resolved photoelectron spectroscopy. The variation in line shape with k is a consequence of the hybridization of the energy bands of the 2-D overlayer with the 3-D solid. This observation, predicted theoretically by Liebsch, yields detailed information about the bonding interactions of ordered chemisorption systems. Author

Descriptors:

• *Crystals
• *Momentum
• *Spectral lines
• *Shape
• *Photoelectric emission
• Photoelectron spectra
• Emission spectra
• Valence
• Molecular energy levels
• Excitation
• Hybridization
• Energy bands
• Chemical bonds
• Chemisorption
• Surfaces
• Electronic states

Subject Categories:

• Crystallography
• Atomic and Molecular Physics and Spectroscopy
• Nuclear Physics and Elementary Particle Physics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE