Spin Effects in Metal Halide Perovskite Semiconductors

Abstract

Metal Halide perovskite semiconductors (MHS) are emerging as potential candidates for opto-spintronic application due to their strong spin-orbit coupling, favorable light emission characteristics and highly tunable structural symmetry. Compared to the significant advancements in the optoelectronic applications of MHS, the exploration and control of spin-related phenomena remain in early stages. In this minireview, we provide an overview of the various spin effects observed both in achiral and chiral MHS, emphasizing their potential for controlling interconversion between spin, charge and light. We specifically highlight the spin selective properties of chiral MHS through the chirality induced spin selectivity (CISS) phenomena, which enable innovative functionalities in devices such as spin-valves, spin-polarized light emitting diodes, polarized photodetectors. Furthermore, we discuss the prospects of MHS as a spintronic semiconductor and their future development in terms of material design, device architecture and stability.