Carbon encapsulation of magnetic metal nanoparticles: Correlation between nanoscale structure of carbon matrix and electromagnetic properties

Abstract

A comparative analysis of modification of Raman spectra of hydrogenated amorphous carbon films containing encapsulated cobalt nanocrystals, their EM radiation losses and distribution function of nanosized fragments of graphene flatness constituting skeleton of amorphous carbon is performed. For this purpose, a model of confinement of graphene phonons by its fragments is developed, for two types of phonons contributing to the D and G peaks of Raman spectra, as a function of Co content.