A new approach to the surface plasma resonance of small metal particles

Autor:	Muliang Xu, Michael J. Dignam
Rok vydání:	1992
Předmět:	Electron density Condensed matter physics Polarizability Chemistry Differential equation Surface plasmon Jellium General Physics and Astronomy Dielectric Physical and Theoretical Chemistry Drude model Molecular physics Plasmon
Zdroj:	The Journal of Chemical Physics. 96:3370-3378
ISSN:	1089-7690 0021-9606
DOI:	10.1063/1.461938
Popis:	A differential equation for the polarizability of a small, continuum, spherically symmetric medium is developed in the local‐dielectric‐response approximation. The dynamic polarizability of a small metal sphere is then calculated through this equation using the Drude dielectric expression with the spatial dispersion of the free electron density given by the results of self‐consistent density functional calculations on jellium. This approach is used to examine the size dependence of the plasmon resonance absorption of small metal particles. It is able to account for the observed broadening and peak frequency shifts, both ‘‘red’’ and ‘‘blue,’’ as well as the additional absorption feature seen for small particles. To the extent that comparison with experimental data is possible, good agreement is found.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::82a58f199c3323349adc8389f7e4f9c4 https://doi.org/10.1063/1.461938 Zobrazit plný text záznamu