Dielectric screening and band-structure effects in low-energy photoemission

E. E. Krasovskii; V. M. Silkin; V. U. Nazarov; P. M. Echenique; E. V. Chulkov

doi:10.1103/PhysRevB.82.125102

Dielectric screening and band-structure effects in low-energy photoemission

E. E. Krasovskii, V. M. Silkin, V. U. Nazarov, P. M. Echenique, E. V. Chulkov

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Abstract

Nonlocal response of the surface to the incident light is included into an ab initio one-step photoemission theory. Surface-state normal emission spectra from Be(0001) and Al(100) are calculated by a full-potential scattering method and are found to agree well with the experiment in a wide energy range. The total exciting field is obtained within the random-phase approximation for jellium as well as for one-dimensional crystal models of the two surfaces. Material dependence of the multipole plasmon mode and strong effect of band structure on the photoyield is discussed.

Original language	English
Article number	125102
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	82
Issue number	12
DOIs	https://doi.org/10.1103/PhysRevB.82.125102
State	Published - 3 Sep 2010
Externally published	Yes

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10.1103/PhysRevB.82.125102

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AU - Chulkov, E. V.

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Dielectric screening and band-structure effects in low-energy photoemission

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