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Interpretation of some features of the plasmon spectrum of simple metals

J.M. Aleshin, D.V. Peregudov

Moscow University Physics Bulletin 2000. 55. N 2. P. 8

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Annotation

The influence of a periodic nonuniform background on the propagation of charge density waves in simple metals is studied. It is shown that the incorporation of spatial nonuniformity in the Vlasov-Poisson equations leads to a plasmon spectrum that is qualitatively consistent with experimental data. Namely, calculations show that charge density waves decay in a nonuniform medium even at a zero quasimomentum value; at some values of the inverse lattice vector, the dispersion curve has a negative slope.

Rissian citation:
И.М. Алешин, Д.В. Перегудов.
Интерпретация некоторых особенностей спектра плазмонов в простых металлах.
Вестн. Моск. ун-та. Сер. 3. Физ. Астрон. 2000. № 2. С. 11.
Authors
J.M. Aleshin, D.V. Peregudov
Department of Earth Physics, Faculty of Physics, Moscow State University, Leninskie Gory, Moscow, 119992, Russia
Issue 2, 2000

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