Reversible strains are widely used in high-technology systems, with piezoelectrics showing fast response but low strain. Here, ferroelectric C6H5N(CH3)3CdCl3 is shown to produce a strain of 21.5%, two orders of magnitude larger than other piezoelectrics, due to organic molecules preventing 180° polarization switching.
- Yuzhong Hu
- Lu You
- Junling Wang
