Giant Electrostriction in Halide Perovskites Revisited With Double-Modulation Interferometry

A reported giant electrostrictive effect in halide perovskites has attracted interest for its physical origin and for potential applications in actuation and sensing. However, despite the reported exceptionally large magnitude of the effect, systematic experimental investigation remains limited. In this work, the electromechanical response of methylammonium lead halide perovskites (MAPbX3; X═I, Br, Cl) in the […]