Core-Hole Lifetime and Screening are Different in the Surface of W(110)

Authors

D. Mark Riffe, Utah State UniversityFollow
G. K. Wertheim
P. H. Citrin
D. N. E. Buchanan

Document Type

Article

Journal/Book Title/Conference

Physica Scripta

Volume

41

Publication Date

1990

Abstract

High resolution 4f photoemission spectra from clean W(110) show that the natural lifetime width and the singularity index, which characterizes the conduction electron screening, are both larger in the first atomic layer than in the bulk. The phonon broadening of the surface and bulk components are smaller than earlier theoretical estimates. The excess broadening at the surface is compatible with a simple Debye model. These findings are very different from the interpretation previously given surface-atom core-level line shapes and have implications extending to other systems.

Comments

Physica Scripta 41, 1009 (1990) [1989 International VUV Conference, Hawaii]

Recommended Citation

"Core-Hole Lifetime and Screening are Different in the Surface of W(110)," D. M. Riffe, G. K. Wertheim, P. H. Citrin, and D. N. E. Buchanan, Physica Scripta 41, 1009 (1990) [1989 International VUV Conference, Hawaii].

https://doi.org/10.1088/0031-8949/41/6/066