Rashba splitting in organic–inorganic lead–halide perovskites revealed through two-photon absorption spectroscopy

Abstract

Understanding of spin-orbit effects in hybrid organic–inorganic perovskites underlies their applications in spintronics and optoelectronics. Here, the authors demonstrate the use of the two-photon absorption spectroscopy to characterize inversion-symmetry breaking and Rashba effect in the bulk of these materials.