Magnetic energy materials: an overview of current activities

Abstract

Magnetism is involved with spins and magnetic moments, which has led to some of the most important technological advances. The rational design of magnetic materials enables one to tailor magnetic properties for specific applications. A tremendous effort is on for finding appropriate magnetic materials that are better suited for magnetic memory devices, sensors applications, magnetic refrigeration, permanent magnets, spintronics, high permeability device applications, bio-medical applications, etc. We have been working on a variety of technologically important magnetic energy materials, such as high magnetocaloric effect materials, rare earth free permanent magnets, Na-ion battery materials, solid oxide fuel cell materials, magnetic-nanoparticle-loaded membrane device for magnetic actuation, etc. It is essential to gain a fundamental understanding of material's magnetic properties to translate the research findings into a realistic candidate, which can be used for technological applications. Results from some of these areas, and the usefulness of magnetic materials for energy applications have been addressed here.