Nonlinear THz Control of Lead Halide Perovskite Lattices in 3, 2, and 1 Dimensions

Lead halide perovskites (LHPs) have emerged as promising semiconductor materials for next-generation optoelectronic devices such as solar cells or LEDs. The origin of their surprising optoelectronic properties have been linked to a delicate interplay of their complex lattice structure and electronic degrees of freedom. Here, we demonstrate coherent THz control of lead halide’s octahedral twist modes, being highly relevant for structural phase fluctuations and dynamic disorder. We discuss the different nonlinear driving mechanisms and give an outlook for lattice control of dimensionality-tailored LHPs in three, two, and one dimensions.