Scientists develop an energy harvesting technology based on ferromagnetic resonance

Researchers have succeeded in storing electricity with the voltage generated from ferromagnetic resonance (FMR) using a nanometer-thin magnetic film. Exploring the storage characteristics of the commonly used iron-cobalt and iron-nickel alloy thin films, they found that by controlling the thermal conditions of the thin film to be within FMR excitation range, energy can be stored by all the electromagnetic waves that surround us -- including Wi-Fi.