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

Authors

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

Document Type

Article

Journal/Book Title/Conference

Physical Review Letters

Volume

63

Issue

18

Publication Date

10-30-1989

First Page

1976

Last Page

1979

Abstract

High-resolution 4f photoemission spectra from clean W(110) show that the natural lifetime width and the (electron-hole)-pair singularity index are both larger in the first atomic layer than in the bulk. Phonon broadening for the surface and bulk components are smaller than theoretical estimates, and little excess broadening is detected in the surface layer. These findings are very different from the conventional picture of surface-atom core-level line shapes and have implications extending to other systems.

Comments

Published by American Physical Society in Physical Review Letters. Publisher PDF is available for download through link above.

Recommended Citation

"Different Core-Hole Lifetime and Screening in the Surface of W(110)," D. M. Riffe, G. K. Wertheim, and P. H. Citrin, Phys. Rev. Lett. 63, 1976 (1989).