Title:
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Bulk-plasmon dispersion relations in metals
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Author:
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Serra, Llorenç; Garcias, Francisca; Barranco Gómez, Manuel; Barberán Falcón, Núria; Navarro Faus, Jesús
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Other authors:
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Universitat de Barcelona |
Abstract:
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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). |
Subject(s):
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-Plasmons (Física) -Relacions de dispersió -Plasmons (Physics) -Dispersion relations |
Rights:
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(c) The American Physical Society, 1991
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Document type:
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Article Article - Published version |
Published by:
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The American Physical Society
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