ABSTRACT
118Magnetic particles in the nanosize regime are the topic of extreme scientific and technical attention due to the array of mesmerizing properties exhibited by them. Nanosized spinel ferrite particles have always been a subject of wide curiosity. The wonderful properties of nanoferrites endow them with unique status in power electronics, nonvolatile memory devices, and biomedical applications. The primary endeavor of this chapter is to highlight the potential of spinel ferrites as radar-absorbing material (RAM), electromagnetic interference (EMI) shielding materials and also in spintronics, power and in biomedical fields. The state of the art techniques for the development of spinel ferrites by solgel and other innovative methods are also discussed. The numerous process parameters that influence the structure, properties, and functionalities of ferrites are detailed. After a brief and concise preface to nanomagnetism, spinel ferrites and their main characteristics, the chapter focuses on recent studies, investigations, and advancements in the field of ferrites. Novel fabrication techniques to develop ferrites and ferrite-based composites are briefly explained. A detailed description of the use of such materials for diversified applications with particular emphasis to EMI suppression and biomedical applications is given in the chapter.
