Volume 121, Number 6, March 2018
|Number of page(s)||7|
|Section||Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties|
|Published online||16 May 2018|
Size and shape effect on optical conductivity of metal nanoparticles
Bogolyubov Institute for Theoretical Physics - 14-b Metrologichna Str., Kyiv, 03143, Ukraine
Received: 1 March 2018
Accepted: 24 April 2018
The effect of a particle size and shape on its optical conductivity is studied for metal nanoparticles. As a model for a particle shape, the oblate and prolate spheroids of revolution were chosen. An analytical relationship between components of the optical conductivity (the transverse and the longitudinal one) and the aspect ratio of the particle is established. The dependence of the electron transport on the particle sizes and on the frequency of the electromagnetic wave is examined. For a particle with large eccentricity these components were found to be in consistence with the well-known Fuchs' results for thin films and thin wires.
PACS: 73.63.-b – Electronic transport in nanoscale materials and structures / 78.67.Bf – Nanocrystals, nanoparticles, and nanoclusters / 72.15.Lh – Relaxation times and mean free paths
© EPLA, 2018
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