ABSTRACT
With the development and ubiquitous presence of electronic devices, interaction with electromagnetic radiation has become an inevitable circumstance in daily life with repercussions in different fields such as electronic safety, military, and health care applications. The development of new methods and materials to reduce adverse effects has been a topic of great interest in science and engineering. In this sense, magnetic nanomaterials are of remarkable interest for the development of new composite materials to attenuate electromagnetic waves at different frequency intervals thus allowing their implementation in many practical applications. This chapter will address the main electromagnetic attenuation mechanisms of dielectric and magnetic materials as well as microwave absorption theory, followed by the review of the recent advances in magnetic nanomaterials for electromagnetic attenuation. The influence of nanosize on the magnetic properties and electromagnetic attenuation performance of nanostructured metamaterials will be also discussed. Finally, the concluding remarks point out the need for further research on this field.
