Elementary excitations in alkali-metal overlayers probed by electron-energy-loss spectroscopy: Quantum-mechanical effects

J. A. Gaspar*, A. G. Eguiluz, K. D. Tsuei, E. W. Plummer

*Autor correspondiente de este trabajo

Producción científica: Contribución a una revistaArtículorevisión exhaustiva

65 Citas (Scopus)

Resumen

The spectrum of electronic excitations of Na and K overlayers adsorbed on Al(111) has been studied by means of electron-energy-loss-spectroscopy experiments, and self-consistent, dynamical-response calculations. Losses are observed in two distinct energy and coverage domains. The loss observed during the formation of the second atomic layer shows novel features, which are traced to the intrinsic quantum-mechanical nature of the excitations being probed, and their spatial confinement by the overlayer.

Idioma originalInglés
Páginas (desde-hasta)2854-2857
Número de páginas4
PublicaciónPhysical Review Letters
Volumen67
N.º20
DOI
EstadoPublicada - 1991
Publicado de forma externa

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