Adsorbate-induced electronic modification of alkali-metal overlayers

Jacobi, Karl; Hongyue, Shi; Gruyters, Markus Thomas Albert; Ertl, Gerhard

doi:10.1103/PhysRevB.49.5733

Item

ITEM ACTIONSEXPORT

Add to Basket

Local TagsRelease HistoryDetailsSummary

Released

Journal Article

Adsorbate-induced electronic modification of alkali-metal overlayers

MPS-Authors

/persons/resource/persons21665

Jacobi, Karl
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons260796

Hongyue, Shi
Fritz Haber Institute, Max Planck Society;

/persons/resource/persons260792

Gruyters, Markus Thomas Albert
Fritz Haber Institute, Max Planck Society;

/persons/resource/persons21498

Ertl, Gerhard
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

External Resource

No external resources are shared

Fulltext (restricted access)

There are currently no full texts shared for your IP range.

Fulltext (public)

PhysRevB.49.5733.pdf
(Publisher version), 169KB

Supplementary Material (public)

There is no public supplementary material available

Citation

Jacobi, K., Hongyue, S., Gruyters, M. T. A., & Ertl, G. (1994). Adsorbate-induced electronic modification of alkali-metal overlayers. Physical Review B, 49(8), 5733-5736. doi:10.1103/PhysRevB.49.5733.

Cite as: https://hdl.handle.net/21.11116/0000-0009-A17C-6

Abstract

For submonolayer coverages of Cs on Ru(0001) surfaces, the Cs-Ru vibration is observed at 7.8 meV (63 cm⁻¹) by means of high-resolution electron-energy-loss spectroscopy. At Cs coverages near the complete monolayer the adlayer becomes metallic as indicated by screening of the Cs-Ru vibration and the occurrence of an electronic excitation (plasmon) at 580 meV. Coadsorption of CO as well as of oxygen leads to the reappearance of the Cs-Ru vibration and the disappearance of the electronic excitation which is interpreted as a demetallization through chemical interaction with the coadsorbed species.