Nature of the Charge Localized Between Alkali Adatoms and Metal Substrates

Authors

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

Document Type

Article

Journal/Book Title/Conference

Physical Review B

Volume

49

Issue

7

Publication Date

2-15-1994

First Page

4834

Last Page

4841

Abstract

Two previously unappreciated features in photoemission spectra from alkali atoms adsorbed on W(110), namely, the sign of the alkali-induced surface-atom core-level shift of the substrate at low coverage and the very large alkali shallow core-hole lifetime width at all coverages, show that the alkali-substrate interaction is not well described by a transfer of alkali charge. Instead, both features point to the formation of a charge cloud between the alkali adatom and substrate that is derived largely from alkali valence states.

Comments

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

Recommended Citation

"Nature of the Charge Localized Between Alkali Adatoms and Metal Substrates," G. K. Wertheim, D. M. Riffe, and P. H. Citrin, Phys. Rev. B 49, 4834 (1994).