Switchable coordination bonds in 3D cyano-bridged perovskite ferroelastics: Achieving the largest leap of symmetry breaking and enhanced dielectric switching performance

Three-dimensional (3D) cyano-bridged perovskites, with a larger framework than their metal-halide counterparts, have shown great promise in the design of molecular ferroelastic, ferroelectric, and even multiferroic materials. However, the relatively...