Comparison of the Surface Structures of SrTiO3 (100) and BaTiO3 (100).

While much research has been focused towards understanding the atomic structures on SrTiO3 surfaces, controversy still remains over the origin of the reconstructions. This talk will provide a rational description of the driving forces for previously observed and newly observed reconstructions on the (100) surface and compare these to analogous structures that occur on BaTiO3 (100). The degree to which the potential for ferroelectric ordering influences surface reconstruction will be discussed.