Determination of the optical properties of ferromagnetic nanoparticles for the Bloch electron system using the DFT method

Abstract

The optical properties of ferromagnetic nanoparticles have been studied include refractive index (n), extinction coefficient (κ), absorption coefficient (α), and reflectivity (R) for Bloch electron system. The determination of optical properties have been found by defining spin susceptibility equation with DFT (Density Functional Theory) method. The optical properties of ferromagnetic nanoparticles equation are obtained with considering the extinction value in momentum and frequency functions.