Based on an organic amine, the crystal is ferroelectric at room temperature, but enters a more pliable phase at higher temperatures. By applying an electric field as the crystal cools, it can be returned to the ferroelectric state.
According to the team, a distinct advantage of this crystal is its transition to a plastic state when heat is applied. This plasticity – as opposed to fracturing that occurs in regular organic and inorganic crystals when a mechanical stress is applied – makes it attractive for use as a thin ferroelectric film, including as a non-volatile ferroelectric RAM.