s . cl as s - ph ] 2 1 Ju l 1 99 9 Absorption of radiation by small metallic particles : a general self - consistent approach
نویسنده
چکیده
We introduce a theory for the absorption of electromagnetic radiation by small metal particles, which generalises the random phase approximation by incorporating both electric and magnetic dipole absorption within a unified self-consistent scheme. We demonstrate the equivalence of the new approach to a superficially dissimilar perturbative approach. We show how to obtain solutions to the self-consistent equations using a classical approximation, taking into account the non-locality of the polarisability and the conductivity tensor. We discuss the nature of the self-consistent solutions for diffusive and ballistic electron dynamics. Typeset using REVTEX
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تاریخ انتشار 1999