In the context of nanotechnology, OD-FMR is crucial because it provides a non-invasive and highly sensitive method to investigate the magnetic behavior of nanoparticles, nanowires, and other nanostructures. Understanding these properties is essential for the development of advanced magnetic storage devices, spintronic applications, and nanoscale sensors. The technique also allows for the study of magnetic interactions at the nanoscale, which can lead to novel insights into fundamental physics and material science.
