A perovskite-type cage compound as a temperature-triggered dielectric switchable material†
Abstract
The perovskite-type cage compound [C3H6NH2]2[KCoIII(CN)6] shows a temperature-triggered dielectric switch. The switchable properties around 199 K were revealed by crystal structure studies between low and high dielectric states. They are derived from an order–disorder phase transition of a system, by changing the motions of the polar azetidine cation guests.