Study of the overall magnetic behaviour of nano-crystalline spinel ferrites having different particle sizes and synthesis, characterization and magnetic behaviour of conducting polymer encapsulated magnetic nanoparticles. The temperature and field dependent dc magnetization measurements, Mössbauer spectroscopic measurements, dielectric and conductivity measurements and Optical energy band analysis have been performed. XRD, FTIR, AFM, positron annihilation studies have been performed for thorough understanding of the material characteristics. Current interest is on the development of low Tc rare earth metal substituted ferrites with biocompatible encapsulation for the combined application of self controlled hyperthermia and drug delivery. Fabrication of single domain magnetic nanoparticles of size less than 10 nm and having high value magnetocrystalline anisotropy constant is of another interest. Also recently started work on some nanocrystalline magnetic oxide materials exhibiting near room temperature refrigeration characteristics using magneto caloric effect (MCE) for accomplishing eco-friendly solid state refrigerarant.
My future concerns in research are to explore ways and means to put into practical use the technology we developed to convert these nanostructured materials into biomedical field and highly advanced data storage density of state-of-the-art hard disk drive systems applications. Since the nanoparticles could be highly tailor made and convert in to processable material it carries immense potential to use in various magneto-optic devices also. These aspects I would like to study in the event of me getting an opportunity to research and teaching.
