Heterogeneous ferroelectricity and conductivity of oxidized BaTiO${}_3$ crystals: the role of nanoscale phase segregation in the surface region

Christian Rodenbücher, Gustav Bihlmayer, Susan Trolier-McKinstry +3

We investigate the effect of thermal oxidation on BaTiO${}_3$ single crystals. Our results reveal that, even at moderate temperatures of up to 1000 °C, complex segregation mechanisms…