Anomalous Damping of Volume Plasmons in Polycrystalline Metals

Abstract
Festenberg's observations of anomalously large damping of long-wavelength volume plasmons in a polycrystalline metal appear to be understandable in terms of plasmon scattering on the space-varying structure of the metal. A quantitative theory of this process involving the assumption of a random model for the structural configuration of the medium seems to describe the measurements satisfactorily.