Dear Colleagues,

Spintronics is a new technology for storing, displaying, and processing information based on changes brought in the electronic properties of the material by magnetic fields. The magnetization alignment can influence asymmetric interaction with various biological systems and furthermore can be used for spintronic applications by utilizing quantum-mechanical effects.

Recently, parallel efforts to induce spin selective charge imbalance have attracted enormous attention in the interdisciplinary community. There is the belief that electronic spin couples its degree of freedom with one of the most intriguing asymmetries in nature, chirality. Chirality corresponds to handedness, such that chiral objects are mirror replicas but cannot be superimposed over each other. Interestingly, moving electrons with specific spin also follow chiral paths due to their asymmetric momentum. This enables the chiral system to couple with a spin degree of freedom of an electron and allows specific spin to travel through this chiral system, and vice versa for opposite spin. On this note in the past, there were many systems developed which are able to create spin imbalance, like spin filtering or spin polarized current. For example, recently in supramolecular helical structure, 50 to 60% spin polarization has been seen, where one can easily control the helicity in order to enable spin polarization. Not only in regard to the molecular measurement, significant effort has also been taken to make real spin valves using these systems. Modified magnetoresistance devices, where the soft ferromagnetic layer of the prototype device, is replaced with a helical system that enables spin filtering up to 10%. Although there are several applications of this effect, it is important to realize that a more basic understanding of the phenomenon is required.

You may choose our Joint Special Issue in Magnetochemistry.

Dr. Suryakant Mishra
Guest Editor

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• spintronics
• chiral induced spin selectivity
• asymmetric reaction
• chiral induction
• magneto-electronics
• magnetoelectrochemistry