Photoelectron driven acoustic surface plasmons in p(2x2)K/Be(0001): Ab initio calculations
Artikel i vetenskaplig tidskrift, 2010

We report on low-energy dynamical surface response properties of the p(2×2)K/Be(0001) system calculated within a first-principles approach. It is shown that a partly occupied adsorbate-induced quantum-well band dramatically affects the dynamical properties of the beryllium surface. We demonstrate clear evidence that the observed anomalous features in photoemission spectra of this and a similar system can be explained by acoustic surface plasmon excitations.

Acousic surface plasmons. photoelectron driven process

surface electron dynamics

Författare

V. M. Silkin

Bo Hellsing

Göteborgs universitet

Lars Erik Gustaf Wallden

Chalmers, Teknisk fysik, Fasta tillståndets fysik

Pedro Echenique

Eugene Chulkov

Physical Review B - Condensed Matter and Materials Physics

1098-0121 (ISSN)

Vol. 81 113406 (4 pages)-

Ämneskategorier

Fysik

Den kondenserade materiens fysik

DOI

10.1103/PhysRevB.81.113406