Invertis Journal of Renewable Energy

Spintronics, or spin electronics, is based on controlling and manipulating the spin degrees of freedom in solid- state systems. Spintronics is a new and rapidly emerging field, which can be considered as an offshoot of electronics. It is based on the spin of electrons for the flow of current, and not on the movement of electrons, which is the case with electronics. So, in a way, the dawn of spintronics has resulted in a slight modification of the definition of current, in that it can be present even in the absence of the flow of the electrons, if there is a change in the spin of the electrons. The field is based on the principles of the generation of carrier spin polarisation, spin dynamics, and spin-polarised transport. It is important to note that the spin transport is basically different from the charge transport, as the spin in solids is dependent on the spin-orbit and hyperfine coupling, and thus is a non-conserved quantity. There are many advantages of the property of spin for the Spintronic devices, which have recently been usedfor various applications in the biomedical field. Energy Storage and Electrical Energy Harvesting have also recently been using Spintronics based devices. Novel Concepts and Recent Applications of Spintronics in Energy Storage and Electrical Energy Harvesting have been presented and discussed in this paper. To do this efficiently, the designer has to be well versed with the concepts and designing aspects of Spintronics devices, which have been well explained in this paper. In addition, to provide a broader view of the concept, some recent important biomedical applications of Spintronics have also been reviewed and technically analysed in the present paper, which is expected to be useful for the new entrants in the field, and also for the designers engaged in exploring the novel applications of spintronics in the medical field.