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Title: Bulk-plasmon dispersion relations in metals
Author: Serra, Llorenç
Garcias, Francisca
Barranco Gómez, Manuel
Barberán Falcón, Núria
Navarro Faus, Jesús
Keywords: Plasmons (Física)
Relacions de dispersió
Plasmons (Physics)
Dispersion relations
Issue Date: 1991
Publisher: The American Physical Society
Abstract: Using an extended-random-phase-approximation sum-rule technique, we have investigated the bulk-plasmon dispersion relation, incorporating in a simple way exchange and correlation effects within the jellium model. The results obtained are compared with recent experimental findings. The key role played by exchange and correlation effects in improving the agreement between theory and experiment is stressed. The static polarizability has also been calculated as a function of q. The formulas can be easily modified to incorporate band-structure effects (through an intraband electron effective mass) and core-polarization effects (through a static dielectric constant).
Note: Reproducció digital del document publicat en format paper, proporcionada per PROLA i
It is part of: Physical Review B, 1991, vol. 44, núm. 4, p. 1492-1498.
ISSN: 0163-1829
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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