Ab initio study of the ferroelectric strain dependence and 180${}^{\circ }$ domain walls in the barium metal fluorides BaMgF${}_4$ and BaZnF${}_4$

Maribel Núñez Valdez, Hendrik Th. Spanke, Nicola A. Spaldin

We investigate the strain dependence of the ferroelectric polarization and the structure of the ferroelectric domain walls in the layered perovskite-related barium fluorides, BaMF$…