3D Imaging: 3D Imaging of Ferroelectric Kinetics during Electrically Driven Switching (Adv. Mater. 5/2017)

In article 1603325, M. Ayoub and co‐workers illustrate the ferroelectric domain growth and switching in a relaxor ferroelectric in all three dimensions. Using Čerenkov‐type second‐harmonic microscopy the disordered ferroelectric domains in a strontium barium niobate crystal are imaged nondestructively with a sub‐micrometer resolution in the bulk from the nucleation to the characteristic domain shape. The results suggest a new insight into one of the most complex processes in ferroelectricity.