Investigation of significantly enhanced electromagnetic wave absorption of hard-soft ferrite- graphene nanocomposite

Hard-soft ferrite nanocomposites have attracted increasing attention of researchers due to its excellent dielectric and magnetic properties. Graphene has evoked extensive interests for its abundant EM properties. In addition, other physical properties like large surface area, low density and high chemical stability results in ideal EM wave absorbing material. Dispersion of graphene particles in to magnetic materials like hard-soft ferrite can improve the absorption effect. Taking full advantage of graphene as well as hard-soft ferrite, they are exploited for EM wave absorbing applications in a systematic manner. The main goal of this study is to achieve wideband absorption (i.e., the frequency range in which reflection loss is less than -10 dB) with less coating thickness.