Characterization of golden vaterite by the extended Maxwell Garnett formalism

2021/10/09 by Tom G. Mackay, Akhlesh Lakhtakia, Mackay, Tom G. +1
Computer Science · Earth and Planetary Sciences · #FOS: Physical sciences #Geochemistry and Geologic Mapping #Geological and Geochemical Analysis #Mineralogy and Gemology Studies #Optics (physics.optics)

paper · pdf · doi:10.48550/arxiv.2110.04578

openalex publication_date 2021/10/09 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

The homogenization of vaterite impregnated with gold nanoparticles was accomplished using the extended Maxwell Garnett formalism. The extended formalism takes into account the intrinsic anisotropy of vaterite as well as the size, shape, and orientation of the nanoparticles. Size-dependent permittivity was used for the gold nanoparticles. Numerical studies revealed that the homogenized composite material's permittivity parameters are acutely sensitive to the size, shape, orientation, and volume fraction of the gold nanoparticles.

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