Novel insights into the selection to electron's spin of chiral structure

Spin-polarization can be essential in many cases of vital importance to the procedures of chemical and biological function. Its realization and utilization have been drawing intensively growing attention for over half a century, whereby numerous strategies get developed with related mechanisms proposed. Furthermore, spintronics has evolved as a scientific domain in which efforts are made to better understand the electron's intrinsic quantum properties based on its angular momentum. To date, an effective approach for aligning the electrons’ spin usually employs an external magnetic field, which may not be viable or efficient in all applications. This review emphasizes on the advances of spintronics where the polarization of spin is able to be implemented by other means than an external magnetic field. The key role of chiral structures for filtering the electrons on spin along with the approaches applied to monitor the polarization of spin will get introduced. Moreover, theoretical frameworks rationalizing the experimental results obtained are also presented herein. The thread running through all of these will be the proposal and evolution of Chiral-Induced Spin Selectivity (CISS) effect.